The Preparation of Substituted 1(2H)-Isoquinolinones from Dilithiated 2-Methyl-N-arylbenzamides, 2-Methyl-N-(arylmethyl)-benzamides, or 2-Methylbenzoic Acid, 2,2-Dimethylhydrazide
作者:Sharon E. Davis、A. Cameron Church、Cynthia L. Mazat Griffith、Charles F. Beam
DOI:10.1080/00397919708005002
日期:1997.9
were dilithiated with excess lithium diisopropylamide, and the resulting polyanion-type intermediates were condensed with aromatic esters followed by acid cyclization to the 3-substituted-1(2H)-isoquinolinones (isocarbostyrils).
摘要 2-甲基-N-芳基苯甲酰胺(N-芳基-邻-甲苯甲酰胺),2-甲基-N-(芳甲基)-苯甲酰胺(取代苄基,N-苄基-邻-甲苯甲酰胺),或2-甲基苯甲酸,2, 2-二甲基酰肼(邻甲苯甲酸,N,N-二甲基酰肼)用过量的二异丙基氨基锂二锂化,所得聚阴离子型中间体与芳族酯缩合,然后酸环化为3-取代-1(2H)-异喹啉酮(异喹啉)。