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Authors = Ayada Djafri

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10 pages, 1172 KiB  
Short Note
Synthesis and Characterization of Novel Thiazolidinones and Thioxothiazolidinones Derived from Substituted Indole
by Nawel Rekiba, Abdelmadjid Benmohammed, Sofiane Khanoussi, Ayada Djafri and Jérôme Thibonnet
Molbank 2021, 2021(4), M1284; https://doi.org/10.3390/M1284 - 30 Sep 2021
Cited by 3 | Viewed by 3910
Abstract
Based on recent discoveries concerning the numerous biological properties of thiazolidinones and thiosemicarbazones, new N-substituted heterocyclic derivatives have been designed by combining the indole ring with thioxothiazolidinone, thiazolidinone or thiosemicarbazone. Thus, a series of new thioxothiazolidinone, thiazolidinone, or thiosemicarbazone derivatives bearing indole-based [...] Read more.
Based on recent discoveries concerning the numerous biological properties of thiazolidinones and thiosemicarbazones, new N-substituted heterocyclic derivatives have been designed by combining the indole ring with thioxothiazolidinone, thiazolidinone or thiosemicarbazone. Thus, a series of new thioxothiazolidinone, thiazolidinone, or thiosemicarbazone derivatives bearing indole-based moiety have been designed, synthesized, and developed in good yields. Full article
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16 pages, 595 KiB  
Article
Synthesis of Novel Highly Functionalized 4-Thiazolidinone Derivatives from 4-Phenyl-3-thiosemicarbazones
by Abdelmadjid Benmohammed, Omar Khoumeri, Ayada Djafri, Thierry Terme and Patrice Vanelle
Molecules 2014, 19(3), 3068-3083; https://doi.org/10.3390/molecules19033068 - 11 Mar 2014
Cited by 34 | Viewed by 8959
Abstract
We present herein the synthesis in good yields of two series of highly functionalized thiazolidinone derivatives from the reactions of various 4-phenyl-3-thio-semicarbazones with ethyl 2-bromoacetate and diethyl acetylenedicarboxylate, respectively. Full article
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9 pages, 241 KiB  
Article
Synthesis and Structural Determination of Novel 5-Arylidene-3-N(2-alkyloxyaryl)-2-thioxothiazolidin-4-ones
by Khaled Toubal, Ayada Djafri, Abdelkader Chouaih and Abdou Talbi
Molecules 2012, 17(3), 3501-3509; https://doi.org/10.3390/molecules17033501 - 19 Mar 2012
Cited by 18 | Viewed by 6302
Abstract
As part of our project devoted to the synthesis of heterocycles including thiazole rings, some new 5-arylidene-2-thioxo-3-N-arylthiazolidin-4-ones were synthesized by Knoevenagel condensation. An interesting feature of these compounds is that their chirality is induced by that of their 3-N-(2-alkyloxyaryl)-2-thioxothiazolidin-4-one [...] Read more.
As part of our project devoted to the synthesis of heterocycles including thiazole rings, some new 5-arylidene-2-thioxo-3-N-arylthiazolidin-4-ones were synthesized by Knoevenagel condensation. An interesting feature of these compounds is that their chirality is induced by that of their 3-N-(2-alkyloxyaryl)-2-thioxothiazolidin-4-one precursors, which in turn is due to the presence of a C2 axis of chirality. These new compounds were characterized by spectroscopic methods (IR, 1H-NMR, 13C-NMR). The structure of compound (Z)-(2g) was further determined by X-ray diffraction. Full article
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10 pages, 239 KiB  
Article
3-(2-Aminophenyl)-4-methyl-1,3-thiazole-2(3H)-thione as an Ecofriendly Sulphur Transfer Agent to Prepare Alkanethiols in High Yield and High Purity
by Mohammed Amine Mehdid, Ayada Djafri, Christian Roussel and Federico Andreoli
Molecules 2009, 14(11), 4634-4643; https://doi.org/10.3390/molecules14114634 - 12 Nov 2009
Cited by 5 | Viewed by 12469
Abstract
A new process is described for preparing very pure linear alkanethiols and linear α,ω-alkanedithiols using a sequential alkylation of the title compound, followed by a ring closure to quantitatively give the corresponding 3-methyl[1,3]thiazolo[3,2-a]-[3,1]benzimidazol-9-ium salt and the alkanethiol derivative under mild conditions. The alkanethiol [...] Read more.
A new process is described for preparing very pure linear alkanethiols and linear α,ω-alkanedithiols using a sequential alkylation of the title compound, followed by a ring closure to quantitatively give the corresponding 3-methyl[1,3]thiazolo[3,2-a]-[3,1]benzimidazol-9-ium salt and the alkanethiol derivative under mild conditions. The alkanethiol and the heteroaromatic salt are easily separated by a simple extraction process. The intermediate thiazolium quaternary salts resulting from the first reaction step can be isolated in quantitative yields, affording an odourless protected form of the thiols. Full article
(This article belongs to the Special Issue Advances in Heteroaromatic Chemistry)
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6 pages, 48 KiB  
Communication
One-Pot Synthesis of 5-Arylidene-2-Imino-4-Thiazolidinones under Microwave Irradiation
by Souad Kasmi-Mir, Ayada Djafri, Ludovic Paquin, Jack Hamelin and Mustapha Rahmouni
Molecules 2006, 11(8), 597-602; https://doi.org/10.3390/11080597 - 10 Aug 2006
Cited by 52 | Viewed by 10798
Abstract
A rapid and easy solvent free one-pot synthesis of 5-arylidene-2-imino-4- thiazolidinones by condensation of the thioureas with chloroacetic acid and an aldehyde under microwave-irradiation is described. Full article
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