2,3-Bis-hydroxymethyl-5,5,8a-trimethyl-1,2,3,5,6,7,8,8a-octahydro-naphthalene-1-carboxylic acid 2-isopropyl-5-methyl-cyclohexyl ester 在
对甲苯磺酸 作用下,
以
苯 为溶剂,
反应 6.0h,
以75.5%的产率得到(R)-4-Hydroxymethyl-6,6,9a-trimethyl-3a,4,6,7,8,9,9a,9b-octahydro-3H-naphtho[1,2-c]furan-1-one