Abstract: A visible⁃light induced strategy for C-C bond cleavage, amination of cyclobutanols was reported. The key alkoxy radicals were generated by employing inexpensive cerium catalyst, though charge transfer under visible⁃light irradiation which would undergo a selective β⁃scission and trapped by DBAD to afford hexahydropyridazine derivatives effectively.This reaction combines visible light and inexpensive cerium salts to develop a general practical strategy for the selective carbon⁃carbon bond cleavage and functionalization of ketones. Under operationally simple conditions, cyclobutanone compounds can be successfully converted into universal chemical structural units. Provides a nitrogen⁃containing compound while enriching the carbon⁃carbon bond breaking conversion method.

Key words: Photocatalysis, Cerium trichloride, C-C bond cleavage, Hexahydropyridazine

摘要： 报道了一种可见光诱导的铈催化的四元环醇的开环胺化反应。该方法利用可见光为光源，廉价的三氯化铈为光催化剂，利用配体到金属的电荷转移过程产生烷氧自由基，再经β裂解并被偶氮类化合物捕捉，合成一系列六氢哒嗪含氮化合物。该反应结合可见光和廉价的铈盐，开发了一种通用的对酮的选择性C-C裂解和官能团化的实用策略。该方法操作简单，普通的环丁酮类化合物可以成功转化为通用的化学结构单元。该方法提供含氮化合物的同时丰富了C-C断裂转化。

关键词: 光催化, 三氯化铈, C-C断裂, 六氢哒嗪