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Dotsenko VV, Bespalov AV, Vashurin AS, Aksenov NA, Aksenova IV, Chigorina EA, Krivokolysko SG. 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; 6:32571-32588. [PMID: 34901606 PMCID: PMC8655800 DOI: 10.1021/acsomega.1c04141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
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.
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Affiliation(s)
- Victor V. Dotsenko
- Kuban
State University, Department of Chemistry
& High Technologies, 149 Stavropolskaya st., Krasnodar 350040, Russian Federation
- North
Caucasus Federal University, Department
of Organic Chemistry, 1 Pushkina st., Stavropol 355009, Russian Federation
- Ivanovo
State University of Chemistry and Technology, Department of Inorganic Chemistry, 7 Sheremetievskiy Avenue, Ivanovo 153000, Russian Federation
| | - Alexander V. Bespalov
- Kuban
State University, Department of Chemistry
& High Technologies, 149 Stavropolskaya st., Krasnodar 350040, Russian Federation
| | - Arthur S. Vashurin
- Ivanovo
State University of Chemistry and Technology, Department of Inorganic Chemistry, 7 Sheremetievskiy Avenue, Ivanovo 153000, Russian Federation
| | - Nicolai A. Aksenov
- North
Caucasus Federal University, Department
of Organic Chemistry, 1 Pushkina st., Stavropol 355009, Russian Federation
| | - Inna V. Aksenova
- North
Caucasus Federal University, Department
of Organic Chemistry, 1 Pushkina st., Stavropol 355009, Russian Federation
| | - Elena A. Chigorina
- NRC
“Kurchatov Institute”, 1 Akademika Kurchatova pl., Moscow 123182, Russian Federation
- National
Research Center “Kurchatov Institute”−IREA, 3 Bogorodsky Val, Moscow 107076, Russian Federation
| | - Sergey G. Krivokolysko
- Kuban
State University, Department of Chemistry
& High Technologies, 149 Stavropolskaya st., Krasnodar 350040, Russian Federation
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Kobayashi K, Yamasaki K, Fujiwara D, Nozaki K, Hiyoshi H, Umezu K. Synthesis of [1,4]Dithiino[2,3-d]pyrimidine-6-carbonitrile Derivatives via the Reaction of 2-[(4-Chloropyrimidin-5-yl)sulfanyl]acetonitriles with Carbon Disulfide. HETEROCYCLES 2019. [DOI: 10.3987/com-18-14012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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