Microwave-assisted conversion of carbonyl compounds into formylated secondary amines: new contribution to the Leuckart reaction mechanism in N-methylformamide
作者:Fructuoso Barba、Javier Recio、Belen Batanero
DOI:10.1016/j.tetlet.2013.01.097
日期:2013.4
The reductive amination of several carbonyl compounds (Leuckart reaction) has been performed using N-methylformamide and microwave technology. Under these conditions, a new mechanism is proposed via the initial formation of an imine, followed by reduction to the amine by ‘in situ’ generated formic acid, and further formylation of the amine. Using this methodology, the formyl derivatives of several
几种羰基化合物的还原胺化(Leuckart反应)已使用N-甲基甲酰胺和微波技术进行了。在这些条件下,提出了一种新的机理,即首先形成亚胺,然后通过“原位”生成的甲酸还原为胺,然后进一步使胺甲酰化。使用这种方法,可以良好地获得极好的收率的几种仲胺的甲酰基衍生物。