Tsukada, Yasuhiro, Iwamoto, Kazuhisa, Furutani, Hiroyuki, Matsushita, Yuichi, Abe, Yoshikazu, Matsumoto, Kei, Monda, Keishi, Hayase, Shuichi, Kawatsura, Motoi, and Itoh, Toshiyuki
Abstract: Various types of differently fluorinated-alkyl sulfate ionic liquids have been prepared; the hydrophobicity was dependent on the content ratio of the fluorine on the alkyl sulfate anion and 2,2,3,3,4,4,5,5-octafluoropentyl sulfate salts showed hydrophobic properties. Melting point and viscosity were also dependent on the fluorine contents of the anionic part, while conductivity was determined by the cationic part and not influenced by the fluorine contents. Efficient lipase-catalyzed transesterification was demonstrated using hydrophobic 1-butyl-3-methylimidazolim 2,2,3,3,4,4,5,5-octafluoropentyl sulfate ([bmim][C5F8]) as solvent. [Copyright &y& Elsevier]