Highly diastereoselective four-component synthesis of polysubstituted 1,4,5,6-tetrahydropyridines Научная публикация
Журнал |
Chemistry of Heterocyclic Compounds
ISSN: 1573-8353 , E-ISSN: 0009-3122 |
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Вых. Данные | Год: 2021, Том: 57, Номер: 9, Страницы: 929-933 Страниц : 5 DOI: 10.1007/s10593-021-03002-5 | ||||||
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Реферат:
A novel four-component diastereoselective synthesis of polysubstituted tetrahydropyridines is reported. The Michael addition – Mannich reaction – cyclization – dehydration cascade of benzylidenemalononitriles, esters of 3-oxocarboxylic acids, aromatic aldehydes, and ammonium acetate in methanol provides convenient access to 2-substituted alkyl (4SR,6RS)-4,6-diaryl-5,5-dicyano-1,4,5,6-tetrahydropyridine- 3-carboxylates with two stereocenters in 66–92% yields. The formation of products was highly stereoselective, with only one diastereomer formed. Ammonium acetate plays dual role acting as a base and as a nitrogen source. Structures of the synthesized compounds were confirmed by 1H, 13C NMR, IR, and mass spectral studies. The formation of single diastereomer was confirmed by singe crystal X-ray diffraction studies.
Библиографическая ссылка:
Vereshchagin A.N.
, Iliyasov T.M.
, Karpenko K.A.
, Smirnov V.A.
, Ushakov I.E.
, Elinson M.N.
Highly diastereoselective four-component synthesis of polysubstituted 1,4,5,6-tetrahydropyridines
Chemistry of Heterocyclic Compounds. 2021. V.57. N9. P.929-933. DOI: 10.1007/s10593-021-03002-5 WOS Scopus OpenAlex
Highly diastereoselective four-component synthesis of polysubstituted 1,4,5,6-tetrahydropyridines
Chemistry of Heterocyclic Compounds. 2021. V.57. N9. P.929-933. DOI: 10.1007/s10593-021-03002-5 WOS Scopus OpenAlex
Идентификаторы БД:
Web of science: | WOS:000702194300003 |
Scopus: | 2-s2.0-85116144068 |
OpenAlex: | W3202322298 |