Photocatalyst-, metal- and additive-free regioselective radical cascade sulfonylation/cyclization of benzimidazole derivatives with sulfonyl chlorides induced by visible light

• DOI: 10.1039/d2qo00518b
• Publication Date: 2022-05-24T00:01:05Z
• Authors: Bin Sun; Hai-Xia Tian; Zhi-Gang Ni; Pan-Yi Huang; Hao Ding; Bing-Qian Li; Can Jin; Chun-Lei Wu; Run-Pu Shen
• Keywords: Benzimidazole; Sulfonyl; Visible spectrum; Sulfone; Radical cyclization

An environmentally friendly and practical protocol for the visible-light-triggered regioselective radical cascade sulfonylation/cyclization of unactivated alkenes towards synthesis polycyclic benzimidazoles containing sulfone group has been developed.