tert-butyl (4S,5S)-4-[[tert-butyl(diphenyl)silyl]oxymethyl]-2,2-dimethyl-5-[(E)-2-methyl-3-[(2S,6S)-4-methylidene-6-prop-2-enyloxan-2-yl]prop-2-enyl]-1,3-oxazolidine-3-carboxylate 、
丙烯醛 在
Hoveyda-Grubbs catalyst second generation 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以66%的产率得到tert-butyl (4S,5S)-4-[[tert-butyl(diphenyl)silyl]oxymethyl]-2,2-dimethyl-5-[(E)-2-methyl-3-[(2S,6S)-4-methylidene-6-[(E)-4-oxobut-2-enyl]oxan-2-yl]prop-2-enyl]-1,3-oxazolidine-3-carboxylate