Efficient esterification of carboxylic acids and phosphonic acids with trialkyl orthoacetate in ionic liquid
T Yoshino, S Imori, H Togo
Index: Yoshino, Tomonori; Imori, Satomi; Togo, Hideo Tetrahedron, 2006 , vol. 62, # 6 p. 1309 - 1317
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Citation Number: 60
Abstract
An operationally simple, inexpensive, efficient, and environmentally friendly esterification of various carboxylic acids, phosphonic acids, and phosphinic acids with triethyl orthoacetate or trimethyl orthoacetate under neutral conditions in a typical room temperature ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate, was successfully carried out to provide the corresponding ethyl esters or methyl esters in high yields.
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