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Azim Ziyaei Halimehjani - One of the best experts on this subject based on the ideXlab platform.
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tandem alkylation michael addition reaction of Dithiocarbamic Acids with alkyl γ bromocrotonates access to functionalized 1 3 thiazolidine 2 thiones
Synthesis, 2021Co-Authors: Azim Ziyaei Halimehjani, Petr Beier, Maryam Khalili Foumeshi, Ali Alaei, Blanka KlepetařovaAbstract:Thiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino Acids), carbon disulfide and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. Using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of adducts was demonstrated by hydrolysis, amidation and oxidation reactions.
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Synthesis of novel dithiocarbamates and xanthates using dialkyl azodicarboxylates: SN bond formation
Tetrahedron, 2018Co-Authors: Azim Ziyaei Halimehjani, Blanka Klepetářová, Petr BeierAbstract:Abstract A one‒pot three‒component route for the synthesis of a novel category of dithiocarbamates or xanthates is developed by a reaction of in-situ generated Dithiocarbamic Acids or xanthates with dialkyl azodicarboxylates under mild and catalyst-free conditions. The reaction is characterized by a wide scope, high efficiency and straightforward isolation protocol. The synthetic utility of the dithiocarbamates and xanthates was demonstrated on the preparation of symmetrical and unsymmetrical thioureas, isothiocyanates, and thiocarbamates.
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Synthesis of N,S-Heterocycles and Dithiocarbamates by the Reaction of Dithiocarbamic Acids and S-Alkyl Dithiocarbamates with Nitroepoxides.
Organic Letters, 2017Co-Authors: Azim Ziyaei Halimehjani, Yazdanbakhsh Lotfi NosoodAbstract:A facile and efficient procedure for the synthesis of substituted thiazole-2(3H)-thiones and thiazolidine-2-thiones by the reaction of primary amines, carbon disulfide, and nitroepoxides is described. By using secondary amines in this protocol, the corresponding dithiocarbamate-substituted phenyl-2-propanones were prepared in excellent yields. In addition, substituted thiazoles and 1-(alkylthio)-1-phenylpropan-2-ones were prepared in reactions of S-alkyl dithiocarbamates and nitroepoxides.
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investigation of the reaction of in situ prepared Dithiocarbamic Acids with itaconic anhydride in water
Journal of Heterocyclic Chemistry, 2017Co-Authors: Azim Ziyaei Halimehjani, Yazdanbakhsh Lotfi NosoodAbstract:An environmentally benign procedure for the synthesis of 2-(3-alkyl-4-oxo-2-thioxo-1,3-thiazinan-5-yl)acetic acid via the one-pot three-component reaction of primary amines, carbon disulfide, and itaconic anhydride in water is described. Also, this protocol was expanded for the synthesis of succinic Acids containing a dithiocarbamate group by using hindered primary amines and secondary amines.
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Regiospecific Synthesis of Dithiocarbamates via Markovnikov Addition Reaction.
ChemInform, 2013Co-Authors: Azim Ziyaei Halimehjani, Hamed Pasha Zanussi, Mohammad Amin RanjbariAbstract:N-Vinylpyrrolidine reacts with Dithiocarbamic Acids, generated in situ, to give the target compounds as Markovnikov products.
Blanka Klepetařova - One of the best experts on this subject based on the ideXlab platform.
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tandem alkylation michael addition reaction of Dithiocarbamic Acids with alkyl γ bromocrotonates access to functionalized 1 3 thiazolidine 2 thiones
Synthesis, 2021Co-Authors: Azim Ziyaei Halimehjani, Petr Beier, Maryam Khalili Foumeshi, Ali Alaei, Blanka KlepetařovaAbstract:Thiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino Acids), carbon disulfide and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. Using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of adducts was demonstrated by hydrolysis, amidation and oxidation reactions.
Maryam Khalili Foumeshi - One of the best experts on this subject based on the ideXlab platform.
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tandem alkylation michael addition reaction of Dithiocarbamic Acids with alkyl γ bromocrotonates access to functionalized 1 3 thiazolidine 2 thiones
Synthesis, 2021Co-Authors: Azim Ziyaei Halimehjani, Petr Beier, Maryam Khalili Foumeshi, Ali Alaei, Blanka KlepetařovaAbstract:Thiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino Acids), carbon disulfide and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. Using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of adducts was demonstrated by hydrolysis, amidation and oxidation reactions.
Yazdanbakhsh Lotfi Nosood - One of the best experts on this subject based on the ideXlab platform.
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Synthesis of N,S-Heterocycles and Dithiocarbamates by the Reaction of Dithiocarbamic Acids and S-Alkyl Dithiocarbamates with Nitroepoxides.
Organic Letters, 2017Co-Authors: Azim Ziyaei Halimehjani, Yazdanbakhsh Lotfi NosoodAbstract:A facile and efficient procedure for the synthesis of substituted thiazole-2(3H)-thiones and thiazolidine-2-thiones by the reaction of primary amines, carbon disulfide, and nitroepoxides is described. By using secondary amines in this protocol, the corresponding dithiocarbamate-substituted phenyl-2-propanones were prepared in excellent yields. In addition, substituted thiazoles and 1-(alkylthio)-1-phenylpropan-2-ones were prepared in reactions of S-alkyl dithiocarbamates and nitroepoxides.
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investigation of the reaction of in situ prepared Dithiocarbamic Acids with itaconic anhydride in water
Journal of Heterocyclic Chemistry, 2017Co-Authors: Azim Ziyaei Halimehjani, Yazdanbakhsh Lotfi NosoodAbstract:An environmentally benign procedure for the synthesis of 2-(3-alkyl-4-oxo-2-thioxo-1,3-thiazinan-5-yl)acetic acid via the one-pot three-component reaction of primary amines, carbon disulfide, and itaconic anhydride in water is described. Also, this protocol was expanded for the synthesis of succinic Acids containing a dithiocarbamate group by using hindered primary amines and secondary amines.
Petr Beier - One of the best experts on this subject based on the ideXlab platform.
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tandem alkylation michael addition reaction of Dithiocarbamic Acids with alkyl γ bromocrotonates access to functionalized 1 3 thiazolidine 2 thiones
Synthesis, 2021Co-Authors: Azim Ziyaei Halimehjani, Petr Beier, Maryam Khalili Foumeshi, Ali Alaei, Blanka KlepetařovaAbstract:Thiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino Acids), carbon disulfide and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. Using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of adducts was demonstrated by hydrolysis, amidation and oxidation reactions.
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Synthesis of novel dithiocarbamates and xanthates using dialkyl azodicarboxylates: SN bond formation
Tetrahedron, 2018Co-Authors: Azim Ziyaei Halimehjani, Blanka Klepetářová, Petr BeierAbstract:Abstract A one‒pot three‒component route for the synthesis of a novel category of dithiocarbamates or xanthates is developed by a reaction of in-situ generated Dithiocarbamic Acids or xanthates with dialkyl azodicarboxylates under mild and catalyst-free conditions. The reaction is characterized by a wide scope, high efficiency and straightforward isolation protocol. The synthetic utility of the dithiocarbamates and xanthates was demonstrated on the preparation of symmetrical and unsymmetrical thioureas, isothiocyanates, and thiocarbamates.