wax esters;
Lewis acidic ionic liquid;
long chain carboxylic acid;
long chain alcohol;
D O I:
10.1016/j.tetlet.2007.07.159
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The first liquid-liquid biphasic synthesis of wax esters in a Lewis acidic ionic liquid, choline chloride-2ZnCl(2) by the esterification of long chain carboxylic acids with long chain alcohols is described. The reported reaction system has the advantages of both homogeneous and heterogeneous catalysis with high product yield and the case of product as well as catalyst separation without the use of an organic solvent. The ionic liquid studied plays the dual role of solvent as well as catalyst and is recycled up to six times without any significant loss of activity. (c) 2007 Elsevier Ltd. All rights reserved.