(2S)-5-methyl-2-(1-methyl-1-phenylethyl)cyclohexyl 4-(1,3-dithian-2-ylidene)-2-hydroxy-2,3-dimethylbutanoate 在
水 、 mercury dichloride 作用下,
以
甲醇 为溶剂,
反应 5.0h,
生成
(2R,3S)-5-methyl-2-(1-methyl-1-phenylethyl)cyclohexyl 2,3-dimethyl-5-oxo-2,3,4,5-tetrahydrofuran-2-carboxylate 、
(2S,3S)-5-methyl-2-(1-methyl-1-phenylethyl)cyclohexyl 2,3-dimethyl-5-oxo-2,3,4,5-tetrahydrofuran-2-carboxylate