Heterocycles Synthesis through Reactions of Nucleophiles with Acrylonitriles. 7. A Novel and Facile One-Step Synthesis of 4<i>H</i>-Thiopyrans
作者:Fathy Fahim Abdel-Latif
DOI:10.1246/bcsj.62.3768
日期:1989.11
Several new 4H-thiopyrans were synthesized via a facile one-step method. Structures and reaction mechanisms are also reported and supported by another synthetic routes.
Synthesis and Structure of (2E)-3-Aryl(hetaryl)-2-[5-bromo-4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles
作者:N. A. Pakholka、V. L. Abramenko、V. V. Dotsenko、N. A. Aksenov、I. V. Aksenova、S. G. Krivokolysko
DOI:10.1134/s1070363221030038
日期:2021.3
Bromination of (2E)-3-aryl(hetaryl)-2-[4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles proceeds regioselectively at the C5 atom of the thiazolering with the formation of new (2E)-3-aryl(hetaryl)-2-[5-bromo-4-aryl(hetaryl)-1,3-thiazol-2-yl]acrylonitriles. The latter were alternatively obtained by the reaction of aldehydes, cyanothioacetamide, α-bromoketones and bromine in the presence of triethylamine