COMPOSITIONS COMPRISING AN ANTI-INFLAMMATORY BLEND
申请人:Johnson & Johnson Consumer Inc.
公开号:EP2482809B1
公开(公告)日:2018-06-13
Direct Synthesis of Esters and Amides from Unprotected Hydroxyaromatic and -aliphatic Carboxylic Acids
作者:Alan R. Katritzky、Sanjay K. Singh、Chunming Cai、Sergey Bobrov
DOI:10.1021/jo052293q
日期:2006.4.1
activation of hydroxy-substituted carboxylic acids using benzotriazole chemistry without prior protection of the hydroxy substituents is presented. The N-acylbenzotriazole intermediates 2a−g, 6a−d, and 9a−c have been used for high-yielding synthesis of both aliphatic (3a−l) and aromatic (7a−h, 10a−f) hydroxy carboxamides. High yields of aromatic hydroxy esters 12a−h and 13a−i were obtained using either