Flow synthesis of secondary amines over Ag/Al<sub>2</sub>O<sub>3</sub> catalyst by one-pot reductive amination of aldehydes with nitroarenes
作者:Ekaterina A. Artiukha、Alexey L. Nuzhdin、Galina A. Bukhtiyarova、Valerii I. Bukhtiyarov
DOI:10.1039/c7ra08986d
日期:——
An alumina-supported silver catalyst was investigated in the one-pot reductive amination of aldehydes with nitroarenes in a continuous flow reactor using molecular hydrogen as a reducing agent. A series of secondary amines containing alkyl, OH, OCH3, Cl, Br and CC groups was synthesized in good to excellent yields. The yield of the secondary amine depends on the rate of formation of an intermediate
在使用分子氢作为还原剂的连续流动反应器中,用硝基芳烃对醛进行一锅还原还原胺化研究了氧化铝负载的银催化剂。合成了一系列包含烷基,OH,OCH 3,Cl,Br和C C的仲胺,收率良好。仲胺的产率取决于中间体亚胺的形成速率。结果表明,碳质沉积物在催化剂上的积累是催化剂失活的主要原因。废催化剂可以容易地再生和再利用而不会失去催化活性。