An efficient general synthesis of 1-(benzotriazol-1-yl)alkyl esters
作者:Alan R. Katritzky、Alfredo Pastor、Michael V. Voronkov
DOI:10.1002/jhet.5570360333
日期:1999.5
1-(Benzotriazol-1-yl)alkyl esters 2a-u were obtained in yields averaging 86% by the direct reaction of various aldehydes with the corresponding N-acylbenzotriazoles in the presence of a catalytic amount of potassium carbonate (10–25 mole %). The procedure was optimized by evaluating the effects of solvent, catalyst, temperature and other parameters.
Chemoselective Removal of Acyloxy in 1-(Benzotriazole-1-yl)alkyl Esters and Its Application in the Preparation of β-(Benzotriazole-1-yl)alcohols
作者:Xiaoxia Wang、Hui Mao、Guanqun Xie、Jingxing Du
DOI:10.1080/00397910801993735
日期:2008.8.18
Abstract Mediated by samarium diiodide, 1-(benzotriazole-1-yl)alkyl esters 1 underwent cross-coupling with aldehydes or ketones to afford β-(benzotriazole-1-yl)alcohols 2 exclusively with the selective removal of acyloxy over benzotriazolyl.