Photoinduced radical cascade brominative addition/spirocyclization of N-arylpropiolamides and CBr4 with O2 as oxidant

A visible-light-induced brominated spirocyclization of N-arylpropiolamides and CBr4 for the synthesis of 3-bromo-azaspiro[4,5]trienones is reported here. This process allows the formation of C–Br, C–C, and C=O bonds in a single reaction via a cascade radical addition/ipso-cyclization/oxidative dearo...

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Autori principali:	Zheng-Wei Wu, Han-Han Kong, Yong Wei, Wen-Chao Zhou, Long Wang, Liang-Qiu Lu, Qing-Qing Yang
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	KeAi Communications Co. Ltd. 2025-05-01
Serie:	Green Synthesis and Catalysis
Soggetti:	Visible light Tetrabromomethane Molecular oxygen Photocatalyst- and additive-free Azaspiro[4,5]trienones
Accesso online:	http://www.sciencedirect.com/science/article/pii/S2666554924000048
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