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A Novel Category of Ionic Liquids Based on Diacetone Acrylamide Cation and Their Use as Esterification Catalysts
Author(s) -
Cai QingHai,
Lu Bin,
Li Jiang,
Yang Xin,
Shan YongKui
Publication year - 2006
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200690302
Subject(s) - chemistry , hexafluorophosphate , tetrafluoroborate , ionic liquid , catalysis , acetic acid , acrylamide , chloride , elemental analysis , salt (chemistry) , organic chemistry , inorganic chemistry , nuclear chemistry , polymer , copolymer
A novel category of salts based on diacetone acrylamide cation (DA + ) and the anions such as acetate (Ac − ), trifluoroacetate (TF − ), tetrafluoroborate (BF − ), hexafluorophosphate (PF − ), sulfate (SO − ) and chloride (Cl − ) were synthesized by usual neutralization of acids and bases at room temperature and characterized by IR, 1 H NMR and elemental analysis (EA). The results show that these compounds possess the characteristic of ionic liquids. In addition, four of them, DABF, DACl, DASO and DAPF, were efficient catalysts for esterication of acetic acid with C 1 –C 6 alcohols and octanol.