A rapid and simple amine-catalyzed microwave-assisted isomerization of maleamides into fumaramides
作者:Vita Majce、Marijan Kočevar、Slovenko Polanc
DOI:10.1016/j.tetlet.2011.04.066
日期:2011.6
efficient, and simple method for the synthesis of nonsymmetrical diamides of fumaric acid is reported. Starting from commercially available substrates, maleic diamides are formed in two steps, and then isomerized in a focused microwave reactor in acetonitrile as the solvent in the presence of a catalytic amount of piperidine, giving the corresponding fumaramides in high yields and purity.
报道了一种改进,有效和简单的合成富马酸不对称二酰胺的方法。从市售底物开始,马来酸二酰胺分两步形成,然后在催化量的哌啶存在下,在聚焦的微波反应器中,在乙腈为溶剂中异构化,从而以高收率和纯度得到相应的富马酰胺。