Nucleophilic Substitution and Claisen Rearrangement Reactions of Model Fluoroalkenes of General Structure R−CFCF−CF<sub>3</sub>
作者:Julian A. Cooper、Christel M. Olivares、Graham Sandford
DOI:10.1021/jo0103118
日期:2001.7.1
Fluoroalkenes of general structure R-CF=CF-CF3 (2a, R = cyclopentyl and 2b, R = cyclohexyl), prepared in high yield in two steps from hexafluoropropene and the appropriate cycloalkane, react with oxygen, carbon, and hydrogen nucleophiles to give R-CX=CF-CF3 derivatives (X = H, OR, R, Ar). Reaction of fluoroalkenes 2a and 2b with allylic alkoxides gave products arising from Claisen rearrangement, providing
通式为R-CF = CF-CF3的氟代烯烃(2a,R =环戊基和2b,R =环己基),由六氟丙烯和适当的环烷烃分两步高收率制备,与氧,碳和氢亲核试剂反应生成R-CX = CF-CF 3衍生物(X = H,OR,R,Ar)。氟代烯烃2a和2b与烯丙基醇盐的反应产生了克莱森重排产生的产物,提供了在脂族中链位置上带有> CFCF3单元的酮基烯烃的通道。