(3a'R,4'S,4a'R,7a'R,8'S,8a'S)-4'-(3,3-dimethyl-2,2-dimethylene-2l7-butyl)-8'-methyloctahydro-1'H,3'H-dispiro[cyclohexane-1,2'-s-indacene-6',1''-cyclohexane] 在
四丁基硝酸铵 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 24.0h,
以15%的产率得到(3a'R,4'S,4a'S,7a'R,8'R,8a'R)-4'-methyl-8'-(2-methylene-2l5-allyl)octahydro-1'H,3'H-dispiro[cyclohexane-1,2'-s-indacene-6',1''-cyclohexane]