Direct Dehydrative Esterification of Alcohols and Carboxylic Acids with a Macroporous Polymeric Acid Catalyst
Maki Minakawa, Heeyoel Baek, Yoichi M. A. Yamada*, Jin Wook Han and Yasuhiro Uozumi*
*RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan, Institute for Molecular Science, Okazaki, Aichi 444-8787, Japan, Email: ymayamadariken.jp, uoims.ac.jp
M. Minakawa, H. Baek, Y. M. A. Yamada, J. W. Han, Y. Uozumi, Org. Lett., 2013, 15, 5798-5801.
DOI: 10.1021/ol4028495 (free Supporting Information)
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A macroporous polymeric acid catalyst enables a direct esterification of carboxylic acids and alcohols at 50 to 80°C without removal of water to give the corresponding esters with high yield. Flow esterification for the synthesis of biodiesel fuel was also achieved by using a column-packed macroporous acid catalyst under mild conditions.
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esterification, acetic acid esters