Application of organolithium and related reagents in synthesis. Part 14. Synthetic strategies based on aromatic metallation. A concise regiospecific conversion of benzoic acids into their ortho-pyridoyl derivatives
作者:Jan Epsztajn、Andrzej Jóźwiak、Jerzy A. Krysiak
DOI:10.1016/s0040-4020(01)87002-2
日期:1994.2
The synthesis of the 3-hydroxy-3-pyridyl-isoindolin-1-ones (5) and (6) via metallation (n-BuLi) of the benzanilides (1), and then the reaction of the generated bis lithiated anilides (2) with N,N-dimethylamides or methyl esters of pyridinecarboxylic acids (benzoylation reagents), and subsequent acidic hydrolysis of (5) and (6) as a way (general synthetic strategy) of regiospecific transformation of
通过苯甲酰苯胺(1)的金属化(n-BuLi)合成3-羟基-3-吡啶基-异吲哚啉-1-酮(5)和(6),然后生成的双锂化苯甲酸酯反应(2))与吡啶羧酸的N,N-二甲酰胺或甲基酯(苯甲酰化试剂)结合,然后将(5)和(6)进行酸性水解,作为苯甲酸向其苯甲酰化衍生物的区域特异性转化的一种方法(一般合成策略)进行说明。