The kinetic and thermodynamic influence of fluorine versus methyl substituents in methylenecyclopropane rearrangements
作者:William R. Dolbier、Conrad R. Burkholder、Alba Lucia Chaves、Astor Green
DOI:10.1016/0022-1139(95)00376-2
日期:1996.3
review of the kinetic and thermodynamic influences of methyl and fluorinesubstituents on the methylenecyclopropane rearrangement is presented. In spite of a superficial similarity of the overall influence of these two substituents, methyl's effect derives largely from the incremental nature of its radical- and alkene-stabilizing, and steric impact, while fluorine'seffect derives from its large and