Synthesis of Substituted 1,4‐Dihydropyridines in Water Using Phase‐Transfer Catalyst Under Microwave Irradiation
作者:Hojatollah Salehi、Qing‐Xiang Guo
DOI:10.1081/scc-200039409
日期:2004.12.31
Abstract The synthesis of various substituted 1,4‐dihydropyridines has been achieved by the reaction of aldehydes, ethyl/methyl acetoacetates, and ammonium acetate in water using phase‐transfer catalyst under microwave irradiation. Compared to the classical Hantzsch's reaction conditions, this new method consistently has the advantage of good yields and short reaction times. Bifunctional compounds containing
摘要 在微波辐射下,使用相转移催化剂,醛、乙酰乙酸乙酯和乙酸铵在水中反应合成了各种取代的 1,4-二氢吡啶。与经典的 Hantzsch 反应条件相比,这种新方法始终具有收率好和反应时间短的优点。已经使用二醛作为前体以良好的产率合成了含有两个单元的双功能化合物。