A new visible-light-promoted reaction between aryldiazoacetates and 1,3-diketones allows good yields and selectivities for C–C bond insertions, leading to the corresponding 1,4-dicarbonyl compounds. This transformation is straightforward and highly practical. It tolerates air and moisture and does not require the use of any metals. Mechanistic investigations support the involvement of a key cyclopropanol
芳基
重氮乙酸酯和 1,3-二酮之间的一种新的可见光促进反应为 C-C 键插入提供了良好的产率和选择性,从而产生了相应的 1,4-二羰基化合物。这种转换很直接,也很实用。它耐受空气和
水分,不需要使用任何
金属。机理研究支持来自分子内重排的关键
环丙醇中间体的参与。