作者:Wang, Chen-Hong、Guo, Jia-Dong、Yu, Ji-Xin、Qiao, Jia、Chen, Bin、Tung, Chen-Ho、Wu, Li-Zhu
DOI:10.1021/acs.orglett.4c02570
日期:——
example of photocatalytic cross-coupling of alkenes with aldehydes by a single catalyst without an external photosensitizer and any additives. Irradiation of the aromatic aldehyde and cobaloxime catalyst results in the formation of an acyl radical, which undergoes radical addition with alkene or indole and subsequently β-H elimination to afford alkenyl ketone. The reaction features cheap and readily available
这是通过单一催化剂实现烯烃与醛光催化交叉偶联的第一个例子,无需外部光敏剂和任何添加剂。芳香醛和钴肟催化剂的辐射导致酰基自由基的形成,酰基自由基与烯烃或吲哚发生自由基加成,随后消除β-H,得到烯基酮。该反应原料廉价易得,底物范围广泛,条件温和,甚至适用于生物活性化合物的后期衍生化。