875633-32-2Relevant academic research and scientific papers
Physicochemical properties of phosphonium-based and ammonium-based protic ionic liquids
Luo, Jiangshui,Conrad, Olaf,Vankelecom, Ivo F.J.
, p. 20574 - 20579 (2012)
Trioctylphosphonium triflate, trioctylammonium triflate, triphenylphosphonium triflate and triphenylammonium triflate were synthesized and characterized. It was found that phosphonium-based protic ionic liquids (PILs) exhibit higher thermal stability and
METHOD FOR PRODUCING ESTER AND ESTERIFICATION CATALYST
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Page/Page column 5, (2008/06/13)
A process for producing an ester includes the step of allowing a carboxylic acid to react with an alcohol, wherein an ammonium sulfonate is used as an esterification catalyst, the ammonium sulfonate being composed of an ammonium cation having a basic skeleton represented by formula (1) (wherein n represents 1 or 2) in which hydrogen atoms in the benzene rings and hydrogen atoms bonded to bridge carbon may be substituted), and a sulfonic acid anion represented by RSO 3 - (wherein R represents an arene, a perfluoroalkane having 1 to 8 carbon atoms, or a bulky alkane).
