2,2-Disubstituted cyclohexane-1,3-diones 1a-d undergo an unexpected ring cleavage when subjected to ketalization reaction using different diols. The intermediacy of diketal 3a in the formation of cleavage product 4a has been established.
当使用不同的二醇进行
缩酮化反应时,2,2-二取代的
环己烷-1,3-二酮1a-d发生意外的环断裂。已经确定了双
缩酮3a在裂解产物4a的形成中的中介作用。