Direct reductive amination of aldehydes using lithium-arene(cat.) as reducing system. A simple one-pot procedure for the synthesis of secondary amines
作者:Fabiana Nador、Yanina Moglie、Andrés Ciolino、Adriana Pierini、Viviana Dorn、Miguel Yus、Francisco Alonso、Gabriel Radivoy
DOI:10.1016/j.tetlet.2012.04.054
日期:2012.6
A simple one-pot procedure for the direct reductive amination of aldehydes using lithium powder and a catalytic amount of 4,4′-di-tert-butylbiphenyl (DTBB) or a polymer supported naphthalene as reducing system is described. The direct reductive amination of a variety of aldehydes with primary amines was achieved simply by adding a mixture of the corresponding carbonyl compound and the amine, over a
描述了使用锂粉和催化量的4,4'-二叔丁基联苯(DTBB)或聚合物负载的萘作为还原体系对醛进行直接还原胺化的简单一锅法。只需在室温下在芳烃锂在THF中的溶液中加入相应的羰基化合物和胺的混合物,即可实现多种醛与伯胺的直接还原胺化。对于大多数测试的底物,主要反应产物是仲胺以及不同量的相应醇和/或亚胺产物。为了说明芳香族底物在反应性上的差异,已经应用了理论DFT计算。