(1R,1aS,3aS,4R,6aR)-4-(tert-Butyl-dimethyl-silanyloxy)-5,5-dimethyl-2-oxo-1-vinyl-octahydro-cyclopropa[c]pentalene-1-carboxylic acid ethyl ester 在
碘代三甲硅烷 、
氢气 作用下,
生成
(Z)-2-[(1S,3aR,6aR)-1-(tert-Butyl-dimethyl-silanyloxy)-2,2-dimethyl-5-oxo-hexahydro-pentalen-3a-yl]-4-iodo-but-2-enoic acid ethyl ester