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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.
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页码:6950 / 6953
页数:4
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