Nickel-Catalyzed Denitrogenative Annulation of 1,2,3-Benzotriazin-4-(3<i>H</i>
)-ones with Benzynes for Construction of Phenanthridinone Scaffolds
作者:Vijaykumar H. Thorat、Nitinkumar Satyadev Upadhyay、Masahiro Murakami、Chien-Hong Cheng
DOI:10.1002/adsc.201701143
日期:2018.1.17
The synthesis of phenanthridinones via denitrogenative annulation of 1,2,3‐benzotriazin‐4‐(3H)‐ones with arynes catalysed by Ni(0)/dppm was successfully developed. A variety of phenanthridinones were prepared in good to excellent yields. Based on this method, nature product, N‐methylcrinasidine, was synthesized.
Ni(0)/ dppm催化的具有芳烃的1,2,3-苯并三嗪-4-(3 H)-酮的脱氮环化反应成功地合成了菲啶酮类化合物。制备了各种菲啶酮,收率良好至优异。基于此方法,合成了天然产物N-甲基crinasidine。