Carbene-catalyzed aerobic oxidation of isoquinolinium salts: efficient synthesis of isoquinolinones
作者:Guanjie Wang、Wanyao Hu、Zhouli Hu、Yuxia Zhang、Wei Yao、Lin Li、Zhenqian Fu、Wei Huang
DOI:10.1039/c8gc01488d
日期:——
transformation. This reaction features ambient air as the sole oxidant and oxygen source, a broad substrate scope, and excellent functional-group tolerance and proceeds under mild reaction conditions. Furthermore, a highly efficient synthesis of bioactive molecules and natural products including N-methylcrinasiadine, N-isopentylcrinasiadine, N-phenethylcrinasiadine, isoindolo[2,1-b]isoquinolin-5(7H)-one, PJ-34,
成功实现了温和环保的卡宾催化的异喹啉鎓盐的好氧氧化。因此,有效地制备了各种异喹啉酮和菲啶酮类,收率良好至优异。机理研究表明,氮杂-布雷斯洛中间体的形成是该转变的关键步骤。该反应具有环境空气作为唯一的氧化剂和氧气源,广泛的底物范围以及出色的官能团耐受性的特点,并且可以在温和的反应条件下进行。此外,生物活性分子和天然产物,包括一种高效合成Ñ -methylcrinasiadine,Ñ -isopentylcrinasiadine,Ñ -phenethylcrinasiadine,异吲哚基[2,1- b完成了] isoquinolin -5(7 H)-1,PJ-34,rac-Gusanlung D,罗塞他星,8-氧代伪巴马汀和伊利福林B的合成。