Cyanation of 1-Halocycloalkenes Catalyzed by Tetracyanocobaltate(I). Convenient Synthesis of 1-Cyanocycloalkenes
作者:Takuzo Funabiki、Hirohito Kishi、Yoshihiro Sato、Satohiro Yoshida
DOI:10.1246/bcsj.56.649
日期:1983.2
1-Cyanocycloalkenes (1-cyanocyclopentene, -hexene, -heptene, and -octene) were readily synthesized by catalytic cyanation of the corresponding 1-halocycloalkenes with tetracyanocobaltate(I). Reactivities of methyl-substituted 1-chlorocyclohexenes were lower than that of 1-chlorocyclohexene, and 1-chloro-2-methylcyclohexene scarecely reacted. Hydrogenation and isomerization of 1-cyanocycloalkenes were
1-氰基环烯烃(1-氰基环戊烯、-己烯、-庚烯和-辛烯)很容易通过相应的 1-卤代环烯烃与四氰基钴酸盐 (I) 的催化氰化反应合成。甲基取代的1-氯环己烯的反应活性低于1-氯环己烯,且1-氯-2-甲基环己烯反应缓慢。仅用 1-氰基环庚烯和 1-氰基-6-甲基环己烯分别观察到 1-氰基环烯烃的氢化和异构化。