(1S,2R)-methyl 1-hydroxy-2-(4-methoxyphenethyl)-3-methylenecyclohexanecarboxylate 在
四氯化钛 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
生成
(1S,4aS,10aR)-methyl 1-hydroxy-6-methoxy-4a-methyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carboxylate 、 (1R,4aR,10aS)-methyl 1-hydroxy-6-methoxy-4a-methyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carboxylate