(2S,4aS,8S,8aR)-8-allyl-8-methyl-3-methylene-1,2,3,4,8,8a-hexahydro-7H-2,4a-ethanonaphthalen-7-one 、
2-Trimethylsilylethyl 2,4-dihydroxy-3-(prop-2-enoylamino)benzoate 在
Hoveyda-Grubbs catalyst second generation 作用下,
以
苯 为溶剂,
反应 1.17h,
以42%的产率得到2-(trimethylsilyl)ethyl 2,4-dihydroxy-3-((E)-4-((2S,4aS,8S,8aR)-8-methyl-3-methylene-7-oxo-1,3,4,7,8,8a-hexahydro-2H-2,4a-ethanonaphthalen-8-yl)but-2-enamido)benzoate