868082-92-2Relevant academic research and scientific papers
Bronsted acidic room temperature ionic liquids each having a N-protonated lactam cation and method for preparing the same
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Page/Page column 3, (2008/06/13)
The invention relates to a class of novel Br?nsted acidic ionic liquids each having a lactam cation, and to a method for preparing the same through simple neutralization reaction of a lactam, which is available in large scale from industry, with a Br?nsted inorganic or organic acid under room temperature. The properties of the lactam Br?nsted acidic ionic liquids are as follows: they are water- and moisture-stable; they are more environmentally benign and lower cost than that of dialkylimidazolium salts; they have stronger Br?nsted acidity and can be used as acidic catalysts and media instead of inorganic corrosive acids, such as concentrated sulfuric acid and hydrofluoric acid, in many acid-catalyzed reactions; and they can also be used as green media for extraction and separation.
