(1R,2S,3aR,5R,7aR,8R)-2-(1-Hydroxy-1-methyl-ethyl)-3a,5-dimethyl-8-o-tolyl-octahydro-1,5-methano-inden-6-one 在
对甲苯磺酸 作用下,
以
苯 为溶剂,
反应 0.5h,
以85%的产率得到(+)-(1R,2R,3R,6R,7R)-1,6-dimethyl-4-isopropylidene-2-(2-methylphenyl)tricyclo[4.3.1.0
3,7]decan-9-one