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Journal of Molecular Structure (Volume : 1342)

Convenient Synthesis, Spectroscopy Characterization, Biological Evaluation, and Computational Studies of Azo-Chalcone for DNA detection

This study reports the synthesis and characterizing of a novel azo-chalcone incorporating a dimethylamino-diazenylphenyl fragment,... See more

This study reports the synthesis and characterizing of a novel azo-chalcone incorporating a dimethylamino-diazenylphenyl fragment, designed as a safer organic dye for DNA staining. Spectroscopic methods (IR, ¹H/¹³C NMR) confirmed the structure, while density functional theory (DFT) revealed its electronic properties, demonstrating comparable reactivity in gas and ethanol phases with enhanced electrophilicity in solution. Molecular docking identified minor groove binding to A-T-rich DNA regions (docking score:8.212 kcal/mol), supported by hydrogen bonds and van der Waals interactions. The compound adhered to Lipinski’s rule of five and exhibited favorable ADMET profiles, though risks of CYP inhibition and hepatotoxicity were noted. Hirshfeld surface analysis highlighted weak non-covalent interactions, while MEP mapping identified nucleophilic sites at carbonyl oxygen. This work advances chalcone-based dyes for DNA visualization, offering insights into structure-activity relationships and pharmacokinetic optimization for therapeutic applications.

2025-10

Reaction Kinetics, Mechanisms and Catalysis

Claisen–Schmidt synthesis of azo-chalcone catalyzed by a zinc-based metal–organic framework: structural characterization, density functional theory calculations, and molecular docking studies

A novel zinc-based metal–organic framework was successfully employed as a catalyst in the Claisen–Schmidt condensation... See more

A novel zinc-based metal–organic framework was successfully employed as a catalyst in the Claisen–Schmidt condensation reaction for the synthesis of azo-chalcone. The catalyst demonstrated excellent recyclability and maintained high activity after the reaction without loss of effectiveness. The synthetic protocol allows for simple product isolation, easy workup, and efficient purification, supporting potential scale-up for industrial applications. Quantum chemical calculations provided insights into the electronic and structural properties of the synthesized azo-chalcone. Molecular docking studies revealed strong binding affinity of the chalcone to Escherichia coli DNA gyrase, with a docking score of − 10.794 kcal/mol. Key interactions involved hydrogen bonding and van der Waals forces, particularly with the amino acid Asn46, which is critical in ATP hydrolysis inhibition. The compound also displayed favorable drug-like properties according to Lipinski’s rule and absorption, distribution, metabolism, elimination, and toxicity profiles.

2025-08

Catalysis Letters (Issue : 155) (Volume : 8)

Microwave-Assisted Synthesis of Azo-Chalcone Using Porous MOF Catalysts: Insights from DFT and Molecular Docking

Metal-organic frameworks (MOFs)-derived heterogeneous catalysis has gained significant attention for their catalytic efficacy and unique... See more

Metal-organic frameworks (MOFs)-derived heterogeneous catalysis has gained significant attention for their catalytic efficacy and unique structural features, making them valuable in various organic syntheses by enhancing reaction efficiency, selectivity, and sustainability. MOFs are highly effective catalysts in organic synthesis due to their catalytically active sites, significant surface areas, tunable pore structures, and a wide range of chemical characteristics that enhance selectivity and accelerate reactions. This study introduces the application of a novel MOF (called UoZ-2) as a heterogeneous catalyst for synthesizing a novel azo-chalcone product through the Claisen-Schmidt condensation process. The UoZ-2 acid catalyst is esteemed for its many benefits, such as operating under mild conditions, achieving rapid reaction rates, facilitating straightforward recovery and isolation without diminishing catalytic efficiency after multiple uses, enabling easy product purification, and offering scalability and lower cost for industrial applications. Furthermore, azo-chalcone product synthesis under microwave irradiation conditions achieves a high yield, saving energy and time, which was compared with the traditional reflux method. Ultimately, these outcomes confirm the use of a friendly environmental method. Moreover, the reusable studies exhibited that the catalysts were found to be stable and reusable for up to three cycles without substantial loss of catalytic activity. The synthesized azo-chalcone was thoroughly characterized using spectroscopic techniques, and its biological potential was assessed through molecular docking studies with the HER2 protein. Computational studies, including density functional theory and ADMET analysis, further revealed the synthesized compound’s electronic properties and pharmacokinetic potential. The findings highlight the potential of UoZ-2 as an efficient and sustainable catalyst for the scalable synthesis of biologically relevant chalcones, offering an environmentally friendly alternative to traditional homogeneous catalytic systems.

2025-07

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 2) (Volume : 41)

Synthesis Development, Spectroscopy Characterizations, and Molecular Docking Study of Some New Bis-1,3-Oxazepine and Bis-1,3-Benzoxazepine Derivatives

Several novel Bis-Oxazepine and Bis-Benzoxazepine derivatives have been produced by condensation and cyclization processes over... See more

Several novel Bis-Oxazepine and Bis-Benzoxazepine derivatives have been produced by condensation and cyclization processes over two effective practical stages. The first stage involved utilizing the Dean-Stark apparatus to create imine intermediates through the condensation reactions of 3-hydroxy benzaldehyde with various aromatic diamine substrates in the presence of glacial acetic acid as a catalyst. The second stage required treatment of bis-Schiff base intermediate with maleic- or phthalic anhydride in dry benzene to produce the desired Bis-Oxazepine and Bis-Benzoxazepine derivatives with 70-95% yields using microwave irradiation. The molecular docking of the produced chemicals was conducted against the progesterone receptor. The results indicate potential anticancer properties for three compounds, which show the most promising findings. These compounds obtained higher docking scores (ΔG −9.58, −9.28, and −9.11 kcal/mol), forming three hydrogen bonds with the target protein.

2025-04

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 39) (Volume : 5)

Synthesis and Spectroscopy Characterizations of Some New Bis 1,3-thiazolidin-4-ones Derived from 4-hydroxybenzaldehyde Substrate

Over three major convenient steps, a series of some novel Bis-Schiff bases, and Bis 1,... See more

Over three major convenient steps, a series of some novel Bis-Schiff bases, and Bis 1, 3-thiazolidin-4-one derivatives have been synthesized: Firstly, the etherification process through the reaction of the 4-hydroxybenzaldehyde substrate with o-, m-, and p-chlorobenzylchlorides under mild circumstances. Secondly, the condensation reaction between 4-((chlorobenzyl) oxy) benzaldehyde compounds with a number of aromatic diamines in an acidic environment produces the required Bis-schiff intermediates. Finally, the practical cyclization step was finished by synthesizing the required Bis 1, 3-thiazolidin-4-one products with 79-97% yields through refluxing reaction in benzene with thioglycolic acid.

2024-10

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY (Issue : 40) (Volume : 4)

New Synthesis, Solvatochromism, Halochromism and Dying Applications of Azo Compound 4-hydroxy-3-((3-nitrophenyl) diazenyl)benzaldehyde

his work includes synthesis of the novel azo compound, which consists of diazotization of 3-nitroaniline... See more

his work includes synthesis of the novel azo compound, which consists of diazotization of 3-nitroaniline followed by reaction with 4-hydroxybenzaldehyde in presence of sodium carbonate. The syanthesized azo compound was confirmed by characterization, using FT-IR, 1HNMR, 13CNMR and GC-MS spectra. The azo compound was screened for solvatochromism, Halochromism using UV-Vis spectrophotometer, and found that the azo compound exhibited low solvatochromic and good Halochromic properties. While the dying study (Dye-doped Polymer Films), Poly ethylene was found the best polymer dyed by azo compound and showed good absorbance in the UV region. All fabrics were dyed with a yellow color except the cotton exhibiting a light brown color.

2024-09

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY (Issue : 12) (Volume : 2)

Synthesis Development and Molecular Docking Study of New Azo Chalcone Derivatives

This work is divided into two main parts. The first part involves the synthesis of... See more

This work is divided into two main parts. The first part involves the synthesis of new azo chalcone compounds through a two-step process. Initially, azo compounds are synthesized by diazotizing 3-nitroaniline, followed by a coupling reaction with 4-hydroxyacetophenone, which has a terminal ketone group. Subsequently, the resulting product undergoes a Claisen–Schmidt condensation reaction with various aromatic aldehyde substrates to produce new α, β-unsaturated ketones, known as azo chalcone compounds. The successful synthesis of these compounds is confirmed using Fourier-transform infrared spectroscopy, ¹H NMR, and ¹³C NMR spectral analyses. The second part of this study explores the theoretical biological activity of the synthesized compounds against severe acute respiratory syndrome coronavirus 2 through molecular docking studies. The results indicate potential antiviral properties for each compound, with compounds B5 and B8 exhibiting the most promising results. These compounds achieved higher docking scores (ΔG −6.235 kcal/mol and −5.832 kcal/mol, respectively) and each formed four hydrogen bonds with the target protein

2024-08

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 5) (Volume : 39)

Synthesis and Spectroscopy Characterizations of Some New Bis 1,3-thiazolidin-4-ones Derived from 4-hydroxybenzaldehyde Substrate

Over three major convenient steps, a series of some novel Bis-Schiff bases, and Bis 1,3-thiazolidin-4-one... See more

Over three major convenient steps, a series of some novel Bis-Schiff bases, and Bis 1,3-thiazolidin-4-one derivatives have been synthesized: Firstly, the etherification process through the reaction of the 4-hydroxybenzaldehyde substrate with o-, m-, and p-chlorobenzylchlorides under mild circumstances. Secondly, the condensation reaction between 4-((chlorobenzyl)oxy)benzaldehyde compounds with a number of aromatic diamines in an acidic environment produces the required Bis-schiff intermediates. Finally, the practical cyclization step was finished by synthesizing the required Bis 1,3-thiazolidin-4-one products with 79-97% yields through refluxing reaction in benzene with thioglycolic acid.

2023-10

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 39) (Volume : 2)

A Flexible Route to Synthesis and Molecular Docking of Some New Quinoline Derivatives through Imine and Cyclization Processes

The current assignment depicts the structure of recent quinoline derivatives. This method begins with the... See more

The current assignment depicts the structure of recent quinoline derivatives. This method begins with the structure of imine derivatives through the condensation reaction of ethyl 2-aminobenzoate with various substituted aliphatic aldehydes and ketones in the existence of sodium hydroxide as a catalyst. While the second step includes the intra-cyclization process of the imine compounds in presence of a base like tertiary butoxide that resolute installs the hydroxyl-group on the bicyclic skeleton and aromatic amines. The molecular docking program Flare V4. 0 was applied to investigate the biological activities of divers produced compounds against E. coli bacteria. Spectral data support the compounds of each the recent outputs acquired during this assignment.

2023-09

Indian Journal of Heterocyclic Chemistry (Issue : 3) (Volume : 32)

Synthesis of Some New Bis-4-Thiazolidinones Derived from 2-Hydroxy-1-naphthaldehyde

Several new bis-Schiff bases and bis 4-thiazolidinone derivatives were synthesized through condensation and cyclization processes... See more

Several new bis-Schiff bases and bis 4-thiazolidinone derivatives were synthesized through condensation and cyclization processes over two effective practical steps. The initial step included the synthesis of imine derivatives by the condensation reaction of 2-hydroxy-1-naphthaldehyde with various aromatic diamine substrates in existence of glacial CH3COOH as a catalyst. The second step involved reaction between bis-Schiff base derivatives with thioglycolic acid in anhydrous benzene to produce the desired 4-thiazolidinones.

2022-09

Indian Journal of Heterocyclic Chemistry (Issue : 32) (Volume : 4)

Synthesis and Characterization of Some New Quinoline Derivatives Derived from 2-Amino Benzonitrile

A series of new quinoline derivatives was synthesized involving two main steps. In the first... See more

A series of new quinoline derivatives was synthesized involving two main steps. In the first step, imine derivatives were obtained through the condensation reaction of 2-aminobenzonitrile with different substituted aliphatic aldehyde and ketone substrates in the presence of sodium hydroxide as a catalyst. The intramolecular-cyclization of the imine derivatives in the presence of a base like tBuOK afforded new 4-aminpquinoline derivatives. The structures of all the new products were confirmed by spectral and analytical data.

2022-09

Oriental Journal of Chemistry (Issue : 2) (Volume : 36)

Synthesis of Weinreb and their Derivatives (A-Review)

Due to the largely and an efficient usage of Weinreb amides or N-methoxy-N-methylamides as are... See more

Due to the largely and an efficient usage of Weinreb amides or N-methoxy-N-methylamides as are remarkable intermediate in the organic synthesis field, the recent review paper provides a considerable development literature survey on the Weinreb amides synthesis. The direct transformation of carboxylic acids,acid chlorides, and esters to aldehydes or ketones employing organometallic reagents do not lead in high yields, since the high reactivity of ketone intermediates toward the organometallic reagents. While, the conversion to the appropriate Weinreb Amides, followed by treatment with the organometallic regent, result the stable expected ketones as the stable initial adduct toward further reactions. Furthermore, Weinreb amides undergo nucleophilic addition and produce a unique and steady five-membered cyclic intermediate which protects the over-addition, leading to a serious transformation.

2020-04

Res. J. Chem. Environ. (Issue : 9) (Volume : 23)

Synthesis, Identification and Biological Activity of some Schiff Bases derived from 1,5-diamino naphthalene substrate

New Schiff base compounds have been prepared. Various aliphatic and aromatic ketones were condensed with... See more

New Schiff base compounds have been prepared. Various aliphatic and aromatic ketones were condensed with naphthalene-1, 5-diamine to yield the desired Schiff bases. The structures of all the new products obtained in the present work are supported by spectral and analytical data (IR, NMR and Mass spectroscopy). Furthermore, the biological activity of Schiff Bases compounds was tested against two types of bacteria gram positive for the dye (Staphylococcus aureus) and gram-negative dye (E.Coli).

2019-11

Res. J. Chem. Environ. (Issue : 10) (Volume : 23)

Recent Advances in the Multicomponent Synthesis of Pyrano[2,3-c]pyrazole derivatives

This review highlights recent multicomponent reactions improvement in the synthesis of pyrano[2,3- c]pyrazole derivatives in... See more

This review highlights recent multicomponent reactions improvement in the synthesis of pyrano[2,3- c]pyrazole derivatives in presence of different catalysts including sodium benzoate, CAN, AmberlystA21, L- or S-proline, CTACl, n-TiO2/H14[NaP5W30O110], SiO2TMG,Fe3O4, DMAP, MS 4Å, DABCO, NH4H2PO4/Al2O3,SnO2QDs, CAPB, BF3/MNPs, (Ni 0.5 Zn0.5Fe2O4@Hap-Cs2CO3), VB1, ZrO2 NPs,βCD,TUD, urea, NaBr, MMT-ZSA, piperidine, NMOAg2O, InCl3, PEG-400, NaF and SiO2. In this context, modern routes in the preparation and use of pyrano[2,3-c]pyrazole as a pioneer for the heterocyclic framework are based on three- or fourmulticomponent reaction of ethyl acetoacetate, hydrazine or phenylhydrazine, aromatic aldehyde and malononitrile substrates in presence of catalyst.

2019-10

Oriental Journal of Chemistry (Issue : 6) (Volume : 35)

Recent Developments in Weinreb Synthesis and Their Applications (A-Review)

N-methoxy-N-methyl amides or Weinreb amides are worthy embranchment of amide group and their rich functional... See more

N-methoxy-N-methyl amides or Weinreb amides are worthy embranchment of amide group and their rich functional groups in organic synthesis become a strong else unfeasible conversion. Weinreb amides are produced as an intermediate product of the reaction of carboxylic acids, acid chloride or esters with organometallic reagents, which was first uncovered in 1981. The direct conversion of carboxylic acids or acid chlorides or esters to ketones or aldehydes using organometallic reagents do not lead in high yields, because the intermediate ketones are still highly reactive toward the organometallic reagent. However, after derivatization to the corresponding Weinreb amide, reaction with organometallics does give the desired ketones, as the initial adduct is stabilized and doesn't undergo further reactions. A nucleophilic addition to the Weinreb amides results in a unique and stable five-membered cyclic tetrahedral intermediate which protects the over-addition, leading to a selective conversion.

2019-09

Indian Journal of Heterocyclic Chemistry (Issue : 2) (Volume : 29)

Synthesis and Spectral Characterization of 1,5-Naphthyridine Derivatives through Cross-Coupling Suzuki Reaction

The present work describes the synthesis of new 1,5-naphthyridine derivatives. The procedure is based on... See more

The present work describes the synthesis of new 1,5-naphthyridine derivatives. The procedure is based on the cross-coupling reaction of commercially available 2-iodo-1,5-naphthyridine with aromatic and heteroaromatic boronic acids through the Suzuki reaction. This process furnished the desired products in high yields. The structures of all the new products obtained in this work are supported by spectral and analytical data.

2019-04

Oriental Journal of Chemistry (Issue : 2) (Volume : 35)

A Novel Synthetic Route of Fused Tricyclic Framework Quinoline Derivatives from Readily Available Aliphatic Amino Carboxylic Acid Substrates

A novel and an efficient strategy of fused tricyclic quinoline heterocycle compounds from aliphatic amino... See more

A novel and an efficient strategy of fused tricyclic quinoline heterocycle compounds from aliphatic amino carboxylic acid substrates was studied. The protocol here is proceed over main reaction processes including: cyclization, protection, amidine formation, further cyclization and finally coupling with boronic acid substrate through Suzuki reaction. These reactions afforded the corresponding products in high yields. Furthermore, all synthesized compounds were identified by spectral data.

2019-04

Chemistry–A European Journal (Issue : 10) (Volume : 23)

Free‐Radical Carbo‐Alkenylation of Olefins: Scope, Limitations and Mechanistic Insights

The three-component free-radical carbo-alkenylation of electron-rich olefins has been studied, varying the substitution pattern in... See more

The three-component free-radical carbo-alkenylation of electron-rich olefins has been studied, varying the substitution pattern in the alkene, in the radical precursor and in the final acceptor. New vinylsulfones were also prepared and their reactivity investigated. The scope and limitations of the process was established, and the reaction mech anism clarified using selected dienes as radical clocks. It was thus recognised that the reversible addition onto the olefin of the released sulfonyl group is an important event, which should not be overlooked when using such multicomponent carbo-alkenylation reactions.

2019-01

Indian Journal of Heterocyclic Chemistry (Issue : 1) (Volume : 29)

A flexible synthesis of naphthyridine derivatives through diazotization, triflation, and Suzuki reaction

facile and suitable method for the synthesis of different 1, 8-Naphthyridine derivatives is depicted. The... See more

facile and suitable method for the synthesis of different 1, 8-Naphthyridine derivatives is depicted. The procedure is based on the diazotization and triflation reactions of commercially available 1, 8-naphthyridine-2-amines followed by cross-coupling with aromatic and heteroaromatic boronic acids through Suzuki reaction. These processes reserved the required yields in high percentage. All synthesized compounds were identified by spectral data.

2019-01

Asian Journal of Chemistry (Issue : 1) (Volume : 31)

Recent Free-Radical Reactions - A Review

This review highlights the most recent syntheses of free radical reactions, which included numerous processes... See more

This review highlights the most recent syntheses of free radical reactions, which included numerous processes (photoredox catalysis freeradical reactions, free-radical cascade processes reactions, Minisci-type free radical alkylation reactions and metal-catalysis free radical reactions). A photoredox-catalyzed C–H functioning of aromatic heterocyclic utilizing an assortment of various, alkyltrifluoroborates has been mentioned. Utilizing organo-photocatalyst and a moderate oxidant, conditions malleable for functionalizing complex aromatic heterocyclics are outlined to prepare a oriental agent for late-stage derivatization. Radical alkylations of aromatic heterocyclic (Minisci reactions) appear a more direct functionalization of particular, C–H bonds. For the ground mentioned above, alkylation designing using radical have recently risen to significance for the late-stage functionalization of aromatic heterocyclic framework. Therefore, this issue is the primary point of the present survey, which thinks about work from the most recent five years. The work is ordered by the key procedures associated with the synthesis of free-radical reactions, planning to give researchers a simple comprehension of this free radical–reactions-based science and to give bits of knowledge to provide insights for further investigations.

2019-01

Oriental Journal of Chemistry (Issue : 6) (Volume : 34)

Recent Trifluoromethylation Reactions. A Mini Review Paper

This review highlights recent improvement in trifluoromethylene functionalization processes with CF3 reagents, includes: Togni’s, Umemoto’s,... See more

This review highlights recent improvement in trifluoromethylene functionalization processes with CF3 reagents, includes: Togni’s, Umemoto’s, CF3SO2Cl, CF3I, Yagupol’skii-Umemoto, TMSCF3, Langlois (CF3SO2Na) and clarifies the several designing to result the corresponding trifluoromethylated products. In this article, the selective trifluoromethylation reactions with Togni’s reagents and their analogs are detailed, which work transition metals or photoactivated Ru or Ir catalysts as single electron giver to yield CF3 radical intermediate species. This issue is to introduce a draft of diverse reports, presenting the modern reaction collect and mechanics produced during the past five years. This task is demanded by the key protocol connected with the trifluoromethylation reactions, designing to sustain researchers a straight forward understanding of such reactions and to award information for further implements.

2018-12

Indian Journal of Heterocyclic Chemistry (Issue : 4) (Volume : 28)

Recent Halocyclization Reactions of Alkenes - A Review

This review highlights recent advances in catalytic enantioselective halofunctionalization of alkenes and explains the various... See more

This review highlights recent advances in catalytic enantioselective halofunctionalization of alkenes and explains the various planning to bring about regio- or stereoselective transformations. Halocyclization of olefinic substrates is an encouraging organization in creating O- and N-heterocyclic compounds, which additionally connotes the advancement of their asymmetric variations. The initiation of alkenes and their ensuing functionalization is an as often as possible utilized system in synthetic chemistry. The degree and difficulties of intra- and inter-molecular reaction variations have well talked about. The point is to give an outline of different reports, featuring the new reaction composes and techniques created amid the previous 5 years.

2018-10

Oriental Journal of Chemistry (Issue : 4) (Volume : 34)

Crown Ether Schiff bases and Their Complexes: Recent Advances - Review

In recent years, an interest in the synthesis of crown ether Schiff bases and their... See more

In recent years, an interest in the synthesis of crown ether Schiff bases and their complexes has been increased, due to the significance and broadly the uses of these compounds in various fields. The present review paper outline extensive recent advances literature survey on the crown ether including azomethine group and their complexes with the tough and easy granter atoms, has been reconsidered. Emphasis has been done on element complexation with crown ether holding Schiff bases to enable the researchers to procure valuable information of the chelating activity of crown ether containing azomethine group and their enforcement.

2018-07

Indian Journal of Heterocyclic Chemistry (Issue : 4) (Volume : 27)

A Flexible Protocol for the Preparation of Quinoline Derivatives through Mitsunobu Reaction and Aza-Wittig Intermediate

A convenient procedure for the preparation of variously substituted quinolines is described. The new method... See more

A convenient procedure for the preparation of variously substituted quinolines is described. The new method is based on Mitsunobu reaction of aromatic amines with phosphonium yields. Facile onepot synthesis of quinolones derivatives involving an Aza-Wittig reaction of aryliminophosphorane with substituted aldehydes and cyclization of intermediates was achieved under basic conditions.

2017-10

Indian Journal of Heterocyclic Chemistry (Issue : 3) (Volume : 27)

A Facile Entry to Fused Dipyrimidine: Preparation of Imidazo[1,2-a:3,4-a’] Dipyrimidine-4,9(3H)-Dione and Pyrimido[1’,2’:4,5] Pyrazino[1,2-a] Pyrimidine-4,10(3H,6H)-Dione Derivatives

An efficient one-pot synthesis of imidazo-dipyrimidine-4,9(3H)-diones and pyrimidopyrazinopyrimidine-4,10(3H,6H)-diones was developed using novel Vilsmeier reagent. A... See more

An efficient one-pot synthesis of imidazo-dipyrimidine-4,9(3H)-diones and pyrimidopyrazinopyrimidine-4,10(3H,6H)-diones was developed using novel Vilsmeier reagent. A mixture of 5-ethyl-5-methyl-2,4-imidazolidine-dione or 2,5-piperazine-dione and substituted amino esters underwent cyclization at ambient temperature in dry dichloromethane to afford the desired products. The structures of all the new products obtained in the present work were supported by spectral and analytical data (infrared, nuclear magnetic resonance, and mass spectroscopy).

2017-07

Indian Journal of Heterocyclic Chemistry (Issue : 1) (Volume : 27)

A FACILE SYNTHESIS OF QUINAZOLINONE DERIVATIVES THROUGH VILSMEIER INTERMEDIATE

The reaction of ethyl 2-aminobenzoate with different substituted amide compounds led to cyclization through Vilsmeier... See more

The reaction of ethyl 2-aminobenzoate with different substituted amide compounds led to cyclization through Vilsmeier intermediate in dry dichloromethane and ambient temperature, affording the 4(3H)-quinazolinone derivatives with higher yields. The structures of all the new products obtained in this work are supported by spectral and analytical data (infrared, nuclear magnetic resonance, and mass spectroscopy).

2017-03

J. Indian Chem. Soc. (Volume : 92)

Novel Free‐Radical Mediated Carboalkenylation of Olefins Processes Starting from Ready Available Benzylketone and Weinreb Amide Xanthate as a Electrophilic Radical Precursors …

The addition of electrophilic precursors such as benzylketone and weinreb amide xanthate across the double... See more

The addition of electrophilic precursors such as benzylketone and weinreb amide xanthate across the double bond of unactivated olefins provides access to the corresponding three-component adducts in good to the excellent yields under mild conditions.

2015-10

Oriental Journal of Chemistry (Volume : 31)

High Efficient of the Intermolecular Radical Reactions through three-Component Carbo-Oximation Process using new ready available Sulfonyl oxime

Addition of functionalized carbon fragments across the olefinic π-system through a freeradical carbo-oximation process offers... See more

Addition of functionalized carbon fragments across the olefinic π-system through a freeradical carbo-oximation process offers a straightforward access to valuable intermediatesfor organic synthesis. For this purpose, we designed a new protectedsulfonyl oxime, which enable rapid radical addition with high yields under mild conditions.

2015-09

Oriental Journal of Chemistry (Issue : 3) (Volume : 31)

Synthesis and Antibacterial Activity of 2-Cinnamyl -5-Subsituted-1,3,4-Oxadiazole-1,3,4-Thiadiazoles and 5-Cinnamyl-3- Subsituted-1,2,4-Triazoles

In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles was achieved. 2-(2,3-dimethyl... See more

In this paper the synthesis of some substituted 1,3,4-oxadiazoles, 1,3,4-thiadiazoles and 1,2,4-triazoles was achieved. 2-(2,3-dimethyl phenyl amino) benzoic acid was esterified to its ethyl ester by its reaction with absolute ethanol in presence of concentrated sulfuric acid. The ethyl ester was treated with hydrazine hydrate in ethanol to give the corresponding hydrazide. The hydrazide was converted to substituted thiosemicarbazide by its reaction with ammonium thiocyanate. The thiosemicarbazide was treated with sodium hydroxide solution and with sulfuric acid to give 5-(2,3-dimethyl phenyl amino phenyl)-1,2,4-triazole3-thiol and 2-(2,3-dimethyl phenyl amino phenyl)-5-amino-1,3,4thiadiazole respectively. The acid hydrazide was treated with substituted benzaldehyde to give hydrazones which cyclized to disubstituted 1,3,4oxadiazole, while the reaction of hydrazide with formic acid followed by cyclization of formyl hydrazine by PbO2 to give monosubstituted 1,3,4oxadiazole. Finally, treatment of hydrazide with carbon disulfite in alcoholic potassium hydroxide gave 2-(2,3-dimethyl phenyl amino phenyl)-1,3,4-oxadiazole-5-thiol. The structures of the synthesized compounds were confirmed by physical and spectral means.

2015-08

Oriental Journal of Chemistry (Issue : 4) (Volume : 31)

A Facile Protocol for the Construction of Tricyclic Framework Tetrahydrobenzo-4-nitrobenzenesulfonate, 4-methylbenzenesulfonate and [1,8] naphthyridine Substituents from Methyl δ-Lactam

A convenient procedure for the preparation of various naphthyridine constructions is described. The method is... See more

A convenient procedure for the preparation of various naphthyridine constructions is described. The method is based on the Vilsmeier, cyclization and Suzuki reactions of piperidinone with substituted aniline. The reactions provided the desired fused tricyclic heterocycles products in high yields.

2015-08

Organic letters (Issue : 18) (Volume : 17)

Total Synthesis of (±)-Eucophylline. A Free-Radical Approach to the Synthesis of the Azabicyclo [3.3. 1] nonane Skeleton

The ﬁrst total synthesis of eucophylline was reported in 10 steps and 10% overall yield.... See more

The ﬁrst total synthesis of eucophylline was reported in 10 steps and 10% overall yield. The naphthyridine core of eucophylline was prepared through the coupling between a strained azabicyclo[3.3.1]nonan-2-one and a trisubstituted benzonitrile, followed by a cyclization of the corresponding amidine. This coupling reaction was shown to proceed through a stable bicyclic chloroenamine intermediate. The azabicyclo[3.3.1]nonan-2-one skeleton was in turn accessible through a straightforward sequence including a free-radical three-component oleﬁn carbo-oximation as a key step

2015-06

https://tel.archives-ouvertes.fr/tel-01412881

Development of new radical processes: approaches toward the synthesis of Eucophylline.

The aim of this work was to develop new radical multi-component processes and their application... See more

The aim of this work was to develop new radical multi-component processes and their application in organic synthesis. Carbo-alkenylation processes were thus performed with new radical precursors, different olefins, in the presence of Zdiphenylsulfonylethylene as a terminal acceptor. Reaction conditions have also been optimized, including the diphenylsulfonylhydrazine as a radical initiator under U.V. irradiation, and substitute to the costly DTBHN. Tin-free conditions were also screened with the goal of replacing (Bu3Sn)2 with silyl radicals. Tris(trimethylsilyl)silylthiopropene was tested with success as a radical chain carrier. After this methodology studies, we developed a strategy toward the synthesis of Eucophylline, an alcaloid isolated from Leuconotis griffithii, which tetracyclic skeleton was elaborated based on a carbooximation of olefin. This multicomponent process, followed by a reduction of the oxime function and a lactamization offered a fast access to the bicyclo[3.3.1]lactam, a keyintermediate in the synthesis. A Friedländer-type reaction between this lactam and an ortho-aminobenzonitrile allowed an access to the Eucophylline tetrahydrobenzo[1,8]naphthyridine skeleton. The synthesis of the model compound was finally completed with the introduction of the vinylic substituent through a Heck coupling.

2014-12

Journal of Education and Science (Volume : 22)

Synthesis of Subsituted-1,3,4-Oxadiazoles-1,3,4-Thiadiazolesand1,2,4-Triazolesfrom-2-(2,3-dimethy lphenyl amino) benzoic acid

2009-09

Journal of Education and Science (Issue : 29) (Volume : 22)

Synthesis of some Substituted-1,3,4-Oxadiazoles, Thiadiazoles and 1,2,4-Triazoles

2009-04

National Journal of Chemistry (Volume : 25)

Synthesis and Antibacterial Activity of 2-Cinnamyl -5-Subsituted-1,3,4-Oxadiazole-1,3,4-Thiadiazoles and 5-Cinnamyl-3- Subsituted-1,2,4-Triazoles

2007-11

University of Mosul (Volume : 4)

Synthesis of New Captopril and Enalapril Derivatives with Expected Biological Activity

Thesis

2001-12

ئەز Dr. Shireen Rashid Mohammed

Professor

Professor

Specialties

زانیاری گشتی

ژمارەی ناسنامە

کۆلێژ

بەش

نەتەوە

Professional Experience

1

36

5

0

0

5

2

2

Education

Ph.D Organic Chemistry

2014

M.Sc. Organic Chemistry

2001

B.Sc. Chemistry

1997

بەستەرەکانی سۆشیاڵ و لێكۆڵینەوە

Membership

2024

2024-08-01,current

Contemporary Perspective on Science, Technology and Research

2019

2019-10-01,current

International Journal of Photochemistry and Photochemical Research

2019-04-01,current

Chemical Papers

2018

2018-10-01,current

EDITORIAL BOARD MEMBERSHIP

2018-10-01,current

EDITORIAL BOARD MEMBERSHIP

2018-05-21,current

Reviewer Board Member

2015

2015-02-01,current

membership

2015-02-01,current

membership

2015-02-01,current

membership

Academic Title

Professor

Assistant prof.

Lecturer

Assist. Lecturer

Chemist

Awards

International Conference on Advanced Science and Engineering 2018

2018-10

University of Zakho

Published Journal Articles

Journal of Molecular Structure (Volume : 1342)

Convenient Synthesis, Spectroscopy Characterization, Biological Evaluation, and Computational Studies of Azo-Chalcone for DNA detection

Reaction Kinetics, Mechanisms and Catalysis

Claisen–Schmidt synthesis of azo-chalcone catalyzed by a zinc-based metal–organic framework: structural characterization, density functional theory calculations, and molecular docking studies

Catalysis Letters (Issue : 155) (Volume : 8)

Microwave-Assisted Synthesis of Azo-Chalcone Using Porous MOF Catalysts: Insights from DFT and Molecular Docking

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 2) (Volume : 41)

Synthesis Development, Spectroscopy Characterizations, and Molecular Docking Study of Some New Bis-1,3-Oxazepine and Bis-1,3-Benzoxazepine Derivatives

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 39) (Volume : 5)

Synthesis and Spectroscopy Characterizations of Some New Bis 1,3-thiazolidin-4-ones Derived from 4-hydroxybenzaldehyde Substrate

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY (Issue : 40) (Volume : 4)

New Synthesis, Solvatochromism, Halochromism and Dying Applications of Azo Compound 4-hydroxy-3-((3-nitrophenyl) diazenyl)benzaldehyde

ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY (Issue : 12) (Volume : 2)

Synthesis Development and Molecular Docking Study of New Azo Chalcone Derivatives

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 5) (Volume : 39)

Synthesis and Spectroscopy Characterizations of Some New Bis 1,3-thiazolidin-4-ones Derived from 4-hydroxybenzaldehyde Substrate

ORIENTAL JOURNAL OF CHEMISTRY (Issue : 39) (Volume : 2)

A Flexible Route to Synthesis and Molecular Docking of Some New Quinoline Derivatives through Imine and Cyclization Processes

Indian Journal of Heterocyclic Chemistry (Issue : 3) (Volume : 32)

Synthesis of Some New Bis-4-Thiazolidinones Derived from 2-Hydroxy-1-naphthaldehyde