A green and novel method for synthesis of <i>β</i>-sulfonyl esters under solvent-free conditions
作者:Gholamhassan Imanzadeh、Havva Rezaei、Roghayyeh Asgharzadeh、Zahra Soltanzadeh
DOI:10.1080/17415993.2021.1890738
日期:2021.7.4
for the synthesis of β-sulfonyl esters from sulfonyl hydrazides and acrylic esters promoted by DABCO (1,4-diazabicyclo[2.2.2]octane) is described. The reaction is conducted through sulfa-Michael addition reaction in the absence of solvent at 75°C within 2–3 h. The effects of different bases, molar ratio of DABCO, temperature and time parameters on yield of reaction were investigated.
描述了一种从 DABCO(1,4-二氮杂双环 [2.2.2] 辛烷)促进的磺酰肼和丙烯酸酯合成β-磺酰酯的操作简单有效的绿色方法。该反应通过磺胺-迈克尔加成反应在没有溶剂的情况下在 75°C 下在 2-3 小时内进行。考察了不同碱、DABCO摩尔比、温度和时间参数对反应产率的影响。