… ethylenes using thioamides and methyl dithiocarboxylates and their application to syntheses of pyrazoles, pyrimidines, pyrazolo [3, 4??d] pyrimidines, and 5??aza [2.2. 3 …

Y Tominaga, Y Matsuoka, Y Oniyama…

Index: Tominaga, Yoshinori; Matsuoka, Yoshiki; Oniyama, Yukio; Uchimura, Yoshimitsu; Komiya, Hirofumi; et al. Journal of Heterocyclic Chemistry, 1990 , vol. 27, # 3 p. 647 - 660

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Citation Number: 49

Abstract

Abstract Polarized ethylenes having both electron-donating (an amino or a methylthio group) and electron-accepting (cyano, carbamoyl, methyl ester) groups on the adjacent two olefinic carbon atoms were prepared by the condensation of S-alkylthioamidinium salts or methyl dithiocarboxylates with the corresponding active methylene compounds in good yields. These polarized ethylenes were alternatively synthesized by the reaction of ...