Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2007-05-22
2007-05-22
Saeed, Kamal A. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C546S243000, C540S485000
Reexamination Certificate
active
11185692
ABSTRACT:
The invention relates to a class of novel Brønsted 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 Brønsted inorganic or organic acid under room temperature. The properties of the lactam Brønsted 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 Brønsted 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.
REFERENCES:
patent: 2006/0211871 (2006-09-01), Dai et al.
Deng Youquan
Du Zhengyin
Guo Shu
Li Zuopeng
Zhu Laiying
Barker Michael P.
Lanzhou Institute of Chemical Physics Chinese Academy of Science
Saeed Kamal A.
Sughrue & Mion, PLLC
LandOfFree
Brønsted acidic room temperature ionic liquids each... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Brønsted acidic room temperature ionic liquids each..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brønsted acidic room temperature ionic liquids each... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3781695