Efficient esterification of carboxylic acids and phosphonic acids with trialkyl orthoacetate in ionic liquid |
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| Authors: | Tomonori Yoshino Hideo Togo |
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| Affiliation: | a Graduate School of Science and Technology, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
b Department of Chemistry, Faculty of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan |
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| 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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| Keywords: | Esterification Carboxylic acid Phosphonic acid Phosphinic acid 1-Butyl-3-methylimidazolium hexafluorophosphate Triethyl orthoacetate Trimethyl orthoacetate |
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