Sun, Bin published the artcilePhotocatalyst-, metal- and additive-free regioselective radical cascade sulfonylation/cyclization of benzimidazole derivatives with sulfonyl chlorides induced by visible light, Name: Coumarin-6-sulfonyl chloride, the publication is Organic Chemistry Frontiers (2022), 9(14), 3669-3676, database is CAplus.
Herein, an environmentally friendly and practical protocol for the visible-light-triggered regioselective radical cascade sulfonylation/cyclization of unactivated alkenes towards the synthesis of polycyclic benzimidazoles containing the sulfone group has been developed. Notably, the control experiments demonstrated that a radical pathway was involved in this reaction, and a sulfonyl radical center was initially generated via self-homolysis of sulfonyl chloride upon irradiation Moreover, this protocol features a wide substrate scope, high atom economy, and excellent regioselectivity, and is easy to scale up.
Organic Chemistry Frontiers published new progress about 10543-42-7. 10543-42-7 belongs to chlorides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Chloride,Sulfonyl chlorides,Ester, name is Coumarin-6-sulfonyl chloride, and the molecular formula is C9H21NO3, Name: Coumarin-6-sulfonyl chloride.
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