A metal-free four-component sulfonylation, Giese cyclization, selenylation cascade via insertion of sulfur dioxide

被引:16
|
作者
Nair, Akshay M. [1 ]
Halder, Indranil [1 ]
Volla, Chandra M. R. [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Mumbai 400076, Maharashtra, India
关键词
DIAZONIUM SALTS; CYCLOHEXADIENONES;
D O I
10.1039/d2cc02315f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We hereby report a highly regio- and diastereoselective arylsulfonylation-radical cyclization-selenylation cascade of alkynyl cyclohexadienones for the facile synthesis of highly functionalized dihydrochromenones. The protocol utilizes aryldiazonium salts as aryl partners and DABSO as a benign SO2 source and also as a redox mediator. Additionally, we also developed a visible light mediated protocol wherein diaryliodonium salts were used as the aryl partners at room temperature.
引用
收藏
页码:6950 / 6953
页数:4
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