2-Diazo-3,3-difluoro-4-vinyl-heptanoic acid ethyl ester 在
rhodium(II) acetate dimer 作用下,
以
二氯甲烷 为溶剂,
生成 (1S,5S)-2,2-Difluoro-5-methyl-3-vinyl-cyclopentanecarboxylic acid ethyl ester 、 (1S,3R,4S)-2,2-Difluoro-3-propyl-bicyclo[2.1.0]pentane-1-carboxylic acid ethyl ester 、 (1S,3S,4S)-2,2-Difluoro-3-propyl-bicyclo[2.1.0]pentane-1-carboxylic acid ethyl ester