乙烯 、 (((3aR,4R,6aR)-6-(allyloxy)-6-ethynyl-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methoxy)(tert-butyl)dimethylsilane 在
Grubbs catalyst first generation 作用下,
以
甲苯 为溶剂,
反应 12.0h,
以72%的产率得到tert-butyl (((2R,3a'R,6'R,6a'R)-2',2'-dimethyl-3-vinyl-6',6a'-dihydro-3a'H,5H-spiro[furan-2,4'-furo[3,4-d][1,3]dioxole]-6'-yl)methoxy)dimethylsilane