Rh(III)-Catalyzed Tandem Reaction Access to (Quinazolin-2-yl)methanone Derivatives from 2,1-Benzisoxazoles and α-Azido Ketones
作者:Shan Liu、An-Jing Wang、Min Li、Jing Zhang、Guo-Dong Yin、Wen-Ming Shu、Wei-Chu Yu
DOI:10.1021/acs.joc.2c01214
日期:2022.8.19
A Rh(III)-catalyzed tandem reaction for the synthesis of (quinazolin-2-yl)methanone derivatives has been explored from 2,1-benzisoxazoles and α-azido ketones. The transformation involves Rh(III)-catalyzed denitrogenation of α-azido ketones, aza-[4 + 2] cycloaddition, ring opening, and dehydration aromatization processes. Notably, the aza-[4 + 2] cycloaddition of an imine rhodium complex intermediate
已经探索了从 2,1-苯并异恶唑和 α-叠氮基酮合成 (quinazolin-2-yl)methanone 衍生物的 Rh(III) 催化的串联反应。该转化涉及 Rh(III) 催化的 α-叠氮基酮脱氮、氮杂-[4 + 2] 环加成、开环和脱水芳构化过程。值得注意的是,亚胺铑络合物中间体与 2,1-苯并异恶唑的氮杂-[4 + 2] 环加成反应是该反应的关键。