2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines
trans-2-Amino-4-aryl-5-benzoyl-4,5-dihydrothiophene-3-carbonitriles were prepared either by the reaction of 3-aryl-2-cyanothioacrylamides with α-thiocyanatoacetophenone or by the Michael-type addition of cyanothioacetamide to α-bromochalcones followed by intramolecular cyclization. The mechanism of...
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American Chemical Society
2021
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ir-20.500.12258-184712022-02-21T08:09:57Z 2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines Dotsenko, V. V. Доценко, В. В. Aksenov, N. A. Аксенов, Н. А. Aksenova, I. V. Аксенова, И. В. 2-Amino-4,5-dihydrothiophene-3-carbonitriles Quantum chemical studies Mannich-Type Reactions trans-2-Amino-4-aryl-5-benzoyl-4,5-dihydrothiophene-3-carbonitriles were prepared either by the reaction of 3-aryl-2-cyanothioacrylamides with α-thiocyanatoacetophenone or by the Michael-type addition of cyanothioacetamide to α-bromochalcones followed by intramolecular cyclization. The mechanism of the first reaction was studied using high-level quantum chemical calculations. Density functional theory (DFT) studies were carried out to determine the mechanism of the first reaction. A new approach toward the construction of the thieno[2,3-d]pyrimidine core system was demonstrated by the reaction of the prepared dihydrothiophenes with HCHO and RNH2 under noncatalyzed Mannich conditions 2021-12-06T12:35:36Z 2021-12-06T12:35:36Z 2021 Статья Dotsenko, V. V., Bespalov, A. V., Vashurin, A. S., Aksenov, N. A., Aksenova, I. V., Chigorina, E. A., Krivokolysko, S. G. 2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines // ACS Omega. - 2021. - DOI10.1021/acsomega.1c04141 http://hdl.handle.net/20.500.12258/18471 en ACS Omega application/pdf application/pdf American Chemical Society |
institution |
СКФУ |
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language |
English |
topic |
2-Amino-4,5-dihydrothiophene-3-carbonitriles Quantum chemical studies Mannich-Type Reactions |
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2-Amino-4,5-dihydrothiophene-3-carbonitriles Quantum chemical studies Mannich-Type Reactions Dotsenko, V. V. Доценко, В. В. Aksenov, N. A. Аксенов, Н. А. Aksenova, I. V. Аксенова, И. В. 2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
description |
trans-2-Amino-4-aryl-5-benzoyl-4,5-dihydrothiophene-3-carbonitriles were prepared either by the reaction of 3-aryl-2-cyanothioacrylamides with α-thiocyanatoacetophenone or by the Michael-type addition of cyanothioacetamide to α-bromochalcones followed by intramolecular cyclization. The mechanism of the first reaction was studied using high-level quantum chemical calculations. Density functional theory (DFT) studies were carried out to determine the mechanism of the first reaction. A new approach toward the construction of the thieno[2,3-d]pyrimidine core system was demonstrated by the reaction of the prepared dihydrothiophenes with HCHO and RNH2 under noncatalyzed Mannich conditions |
format |
Статья |
author |
Dotsenko, V. V. Доценко, В. В. Aksenov, N. A. Аксенов, Н. А. Aksenova, I. V. Аксенова, И. В. |
author_facet |
Dotsenko, V. V. Доценко, В. В. Aksenov, N. A. Аксенов, Н. А. Aksenova, I. V. Аксенова, И. В. |
author_sort |
Dotsenko, V. V. |
title |
2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
title_short |
2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
title_full |
2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
title_fullStr |
2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
title_full_unstemmed |
2-Amino-4,5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno[2,3-d]pyrimidines |
title_sort |
2-amino-4,5-dihydrothiophene-3-carbonitriles: a new synthesis, quantum chemical studies, and mannich-type reactions leading to new hexahydrothieno[2,3-d]pyrimidines |
publisher |
American Chemical Society |
publishDate |
2021 |
url |
https://dspace.ncfu.ru/handle/20.500.12258/18471 |
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