3-Hydroxy-3-vinylcycloalkanones, which were prepared from the corresponding cyclic 1,3-diketones by mono-vinylation, were rearranged to two-carbon ring enlarged cyclic 1,5-diketones by treatment with a catalytic amount of potassium tert-butoxide.

中文翻译：

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环状 1,3-二酮的双碳环扩大为环状 1,5-二酮

3-羟基-3-乙烯基环烷酮是由相应的环状 1,3-二酮通过单乙烯基化制备的，通过用催化量的叔丁醇钾处理重排为双碳环扩大的环状 1,5-二酮.