Dicyanoanthracene-sensitized photooxygenation of silyl enol ether  

作　　者：WU,Shi-Hui ZHANG,Zhi-Yi Department of Chemistry,Fudan University,Shanghai 200433 

出　　处：《Chinese Journal of Chemistry》1990年第3期271-273,共2页中国化学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China.

摘　　要：Benzoic acid and substituted benzoic acids are produced in photooxygenation of 1-aryl- 1-trimethylsilyloxy-1-propene(1)sensitized by 9,10-dicyanoanthracene(DCA)in acetonitrile.An electron transfer mechanism is proposed in which superoxide ion(O)combines with cation radical of 1 to form a dioxetane(2)which cleaves to form trimethylsilylbenzoate(3)and then 3 is converted to benzoic acids by hydrolysis.Benzoic acid and substituted benzoic acids are produced in photooxygenation of 1-aryl- 1-trimethylsilyloxy-1-propene(1)sensitized by 9,10-dicyanoanthracene(DCA)in acetonitrile.An electron transfer mechanism is proposed in which superoxide ion(O)combines with cation radical of 1 to form a dioxetane(2)which cleaves to form trimethylsilylbenzoate(3)and then 3 is converted to benzoic acids by hydrolysis.

关 键 词：Dicyanoanthracene-sensitized photooxygenation of silyl enol ether 

分 类 号：O6[理学—化学]