Benzyne Polyfunctionalization via a Tandem C–C σ-Bond Insertion and Photo-Nazarov Cyclization
作者:Caiwen Wan、Yueyin Guo、Xiaocui Chen、Rongrong Gu、Jiarong Shi、Yang Li
DOI:10.1021/acs.orglett.2c02652
日期:2022.10.14
A tandem benzyne C–C σ-bond insertion reaction and photo-Nazarov cyclization protocol was developed, leading to the formation of three C–C bonds at consecutive positions of a benzene ring with concomitant assembly of a 6-5-6 tricyclic ring system. When 3-silylbenzyne precursors were employed, a tandem process involving a benzyne C–C σ-bond insertion, a photo-Nazarov cyclization, and a 1,3-silyl group
开发了串联苯炔 C-C σ-键插入反应和光纳扎罗夫环化方案,导致在苯环的连续位置形成三个 C-C 键,并伴随组装 6-5-6 三环系统. 当使用 3-甲硅烷基苄基前体时,观察到一个串联过程,包括苯炔 C-C σ-键插入、光纳扎罗夫环化和 1,3-甲硅烷基迁移,可产生 1,2,3,5 -四取代苯。