2-(((1R,2S,8aS)-2-hydroxy-2,5,5,8a-tetramethyl-decahydronaphthalen-1-yl)methyl)-4,5-dimethoxyphenyl trifluoromethanesulfonate 在
1,1'-bis(diphenylphosphino)ferrocene 、 palladium diacetate 、
sodium t-butanolate 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
反应 10.0h,
以76%的产率得到(6aS,12aR,12bS)-9,10-dimethoxy-4,4,6a,12b-tetramethyl-2,3,4,4a,5,6,6a,12,12a,12b-decahydro-1H-benzo[a]xanthene