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AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c02323
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资金
- National Natural Science Foundation of China [21772077]
- State Key Laboratory of Applied Organic Chemistry
The annulation reactions of benzoamidyl radicals with alkenes under visible light irradiation using fac-Ir(ppy)(3) as a catalyst and N-aminopyridinium salts as precursors yielded different products depending on the structure of the alkene. Factors influencing the reaction outcome were elucidated by DFT calculations.
The annulation reactions of benzoamidyl radicals with alkenes were realized under visible light irradiation with fac-Ir(ppy)(3) as catalyst and N-aminopyridinium salts as benzoamidyl radical precursors. The reaction can deliver two distinct types of products: in the case of vinyl arenes, [3 + 2] annulation product dihydrooxazoles were yielded exclusively; when alkyl-substituted alkenes were used, on the other hand, it afforded [4 + 2] annulation product dihydroisoquinolinones. Factors determining the reaction consequence were elucidated by DFT calculations.
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