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

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成果类型：

期刊论文

作者：

Zheng-Wei Wu;Han-Han Kong;Yong Wei;Wen-Chao Zhou;Long Wang;...

通讯作者：

Long Wang<&wdkj&>Qing-Qing Yang

作者机构：

[Zheng-Wei Wu; Han-Han Kong] College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China

[Yong Wei; Wen-Chao Zhou] Yichang Humanwell Pharmaceutical Co., Ltd., 19 Dalian Road, Yichang 443008, China

Hubei Three Gorges Labratory, Yichang 443007, China

[Liang-Qiu Lu] CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China

[Long Wang; Qing-Qing Yang] College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China<&wdkj&>Hubei Three Gorges Labratory, Yichang 443007, China

通讯机构：

[Long Wang; Qing-Qing Yang] C

College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China<&wdkj&>Hubei Three Gorges Labratory, Yichang 443007, China

语种：

英文

关键词：

Visible light;Tetrabromomethane;Molecular oxygen;Photocatalyst- and additive-free;Azaspiro[4,5]trienones

期刊：

Green Synthesis and Catalysis

ISSN：

2666-5549

年：

2024

DOI：

10.1016/j.gresc.2024.01.004

机构署名：

本校为其他机构

院系归属：

化学学院

摘要：

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 dearomatization sequence. This protocol also features high functional group tolerance, operational simplicity and the use of molecular oxygen as an oxidant as well as sustainable photocatalyst- and additive-free reaction conditions at room temperature. ...

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

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