反应详情

Starting with 108.08 g (0.351 mol) of ethyl 6-(3'-chlorophenyl)-6-cyano-5-keto-3,3-dimethylhexanoate, 316 ml of acetic acid, 105 ml of water, and 105 ml of concentrated sulfuric acid, and utilizing the procedure described in Example 1, Part B, 40.82 g (46% yield) of 2-(3'-chlorophenyl)-5,5-dimethyl-1,3-cyclohexanedione was obtained as a white solid, m.p. 155°-58° C.