Treatment of 1-diazoalkanediones with rhodium (II) acetate results in cyclization of the intermediate rhodium carbenoid to give a cyclic carbonyl ylide which readily undergoes bimolecular dipolar cycloaddition with various dipolarophiles.
用
乙酸铑(II)处理1-重氮烷二酮导致中间体
铑类
胡萝卜素环化,得到环状羰基叶立德,其容易与各种偶极亲和剂进行双分子偶极环加成。