Highly diastereoselective multicomponent synthesis of 2-piperidone-substituted pyridinium salts with three and four stereogenic centers Full article
Journal |
Tetrahedron
ISSN: 0040-4020 , E-ISSN: 1464-5416 |
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Output data | Year: 2023, Volume: 149, Article number : 133685, Pages count : DOI: 10.1016/j.tet.2023.133685 | ||||||
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Abstract:
A novel four-component (five-molecular) diastereoselective synthesis of pyridinium salts of 2-piperidinones is reported. The Knoevenagel–Michael–Mannich cascade of reactions of aromatic aldehydes (2 eq.), nitriles, pyridinium ylides and ammonium acetate in ethanol provides convenient access to 1-((3R*,4S*,6R*)-5,5-dicyano-2-oxo-4,6-diarylpiperidin-3-yl)pyridin-1-ium halogenides with three stereocenters (55–85 % yields) or 1-(3R*,4S*,5S*,6R*)-(5-cyano-5-(alkoxycarbonyl)-2-oxo-4,6-diarylpiperidin-3-yl)pyridin-1-ium halogenides with four stereocenters (56–84 % yields).
Cite:
Vinokurov A.D.
, Iliyasov T.M.
, Karpenko K.A.
, Derkach Y.V.
, Ryabov A.A.
, Gorbunov S.V.
, Goloveshkin A.S.
, Vereshchagin A.N.
Highly diastereoselective multicomponent synthesis of 2-piperidone-substituted pyridinium salts with three and four stereogenic centers
Tetrahedron. 2023. V.149. 133685 . DOI: 10.1016/j.tet.2023.133685 WOS Scopus OpenAlex
Highly diastereoselective multicomponent synthesis of 2-piperidone-substituted pyridinium salts with three and four stereogenic centers
Tetrahedron. 2023. V.149. 133685 . DOI: 10.1016/j.tet.2023.133685 WOS Scopus OpenAlex
Identifiers:
Web of science: | WOS:001101264200001 |
Scopus: | 2-s2.0-85175448401 |
OpenAlex: | W4387641591 |