Photochemical Synthesis of S,N,O-Containing Polyheterocycles via an α-C(sp<sup>3</sup>)–H Functionalization/Radical Cyclization Cascade
作者:Shi-Yan Cheng、Jia-Bin Liao、Yu-Mei Lin、Lei Gong
DOI:10.1021/acs.orglett.3c02423
日期:2023.9.8
organophotocatalytic α-C(sp3)–H functionalization/radical cyclization cascade has been developed. This method enables the synthesis of various tricyclic heterocycles containing S, O, and N atoms with excellent site selectivity and diastereoselectivity. Mechanistic investigations have confirmed that the reaction involves photoredox-triggered C(sp3)–H cleavage followed by a radical cyclization and aromatization process