An unusual palladium-catalyzed carbonylative cyclization of β-bromovinyl aldehydes leading to lactones
作者:Chan Sik Cho、Hyung Sup Shim
DOI:10.1016/j.tetlet.2006.03.184
日期:2006.6
beta-Bromovinyl aldehydes are carbonylatively cyclized under carbon monoxide pressure in MeCN at 100 degrees C in the presence of a catalytic amount of a palladium catalyst along with a base to give the corresponding lactones in high yields. (c) 2006 Elsevier Ltd. All rights reserved.
Palladium-catalyzed, carbonylative, intramolecular coupling of hydroxyvinyl triflates. Synthesis of substituted .alpha.,.beta.-butenolides