Visible-Light-Induced Radical Carbo-Cyclization/<i>gem</i>-Diborylation through Triplet Energy Transfer between a Gold Catalyst and Aryl Iodides
作者:Lumin Zhang、Xiaojia Si、Frank Rominger、A. Stephen K. Hashmi
DOI:10.1021/jacs.0c03197
日期:2020.6.10
because of their unique structures and reactivity. However, benzo-furan-, indole- and benzothiophene-based benzylic gem-diboronates, building blocks for biologically relevant compounds, are unknown. A promising protocol using visible light and aryl iodides for constructing valuable building blocks, including benzofuran-, indole- and benzothiophene-based benzylic gem-diboronates, via radical carbo-cy
Geminal二硼酸盐因其独特的结构和反应性而引起了极大的关注。然而,基于苯并呋喃、吲哚和苯并噻吩的苄基宝石二硼酸酯(生物相关化合物的构建单元)尚不清楚。提出了一种使用可见光和芳基碘化物构建有价值的构建模块的有前途的协议,包括苯并呋喃、吲哚和苯并噻吩基苄基二硼酸酯,通过具有高官能团耐受性的炔烃的自由基碳环化/宝石二硼化。这些宝石二硼酸盐的效用已通过 10 克规模的转换、多功能转化、包括合成批准的药物支架和两种批准的药物,甚至聚合物合成得到证明。