A Microwave-assisted Deconjugative Esterification of α,β-Unsaturated Carboxylic Acids through α,β-Unsaturated Ketene Intermediates
作者:Shigeki Sano、Takashi Ichikawa、Michiyasu Nakao、Yoshimitsu Nagao
DOI:10.1246/cl.2012.68
日期:2012.1.5
A facile synthetic approach to β,γ-unsaturated esters by deconjugative esterification of α,β-unsaturated carboxylic acids with alcohols in the presence of 1,3-dicyclohexylcarbodiimide (DCC), Me3N·HCl, and Me2NEt is described. The one-pot synthesis was effectively improved under microwave irradiation.
一种简便的合成方法,通过在1,3-二环己基氨基脲(DCC)、氯化三甲胺(Me3N·HCl)和二乙基氨(Me2NEt)的存在下,将α,β-不饱和羧酸与醇进行脱共轭醇酯化,合成β,γ-不饱和酯。这种一步法合成在微波辐射下得到了有效改善。