Ionic Liquid-Supported Aldehyde: A Highly Efficient Scavenger for Primary Amines
作者:Manoj Kumar Muthayala、Anil Kumar
DOI:10.1021/co200151n
日期:2012.1.9
Novel aldehyde-functionalized ionic liquids have been synthesized and used as scavengers for primary amines in the synthesis of secondary amines. The yields of secondary amines are high (82-90%) with high purity. The advantages of the protocol over that with a polymer-supported aldehyde scavenger are the shorter reaction time, the homogeneous reaction medium, the high level of loading of the aldehyde group, easy monitoring of reaction, and characterization of intermediates.
van den Berg, Recueil des Travaux Chimiques des Pays-Bas, 1936, vol. 55, p. 1053,1055