Ionic liquids

Details Ionic liquids Ionic liquids

2009-05-27

2010-11-09

Powers, Fiona T (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07829725

ABSTRACT:
The present invention relates to compositions of matter that are ionic liquids, the compositions comprising any of eleven cations combined with any of three fluorinated sulfonated anions. Compositions of the invention should be useful as solvents and, perhaps, as catalysts for many reactions, including aromatic electrophilic substitution, nitration, acylation, esterification, etherification, oligomerization, transesterification, isomerization and hydration.

REFERENCES:
patent: 3555080 (1971-01-01), Resnick
patent: 5827602 (1998-10-01), Koch et al.
patent: 6720459 (2004-04-01), Sunkara et al.
patent: 7208605 (2007-04-01), Davis, Jr.
patent: 7544813 (2009-06-01), Harmer et al.
patent: 0897950 (1999-02-01), None
patent: 03028882 (2003-04-01), None
patent: 2006084262 (2006-08-01), None
Rogers, Robin D. and Seddon, Kenneth R., Ionic Liquids-Solvents of the Future?, Science, vol. 302, Oct. 31, 2003.
Wasserscheid, Peter et al, Hydrogensulfate and Tetrakis(Hydrogensulfato)Borate Ionic Liquids: Synthesis and Catalytic Application in Highly Bronsted-Acidic Systems for Friedel-Crafts Alkylation, Green Chemistry, 2002, 4, pp. 134-138.
Merrigan, Travis L. et al, New Fluorous Ionic Liquids Function as Surfactants in Conventional Room-Temperature Ionic Liquids, Chem. Commun., 2000, pp. 2051-2052.
Rudyuk, Vitalij V. et al, N-Polyfluoroethyl and N-2-Chlorodifluorovinyl Derivatives of Azoles, Journal of Fluorine Chemistry 125 (2004), pp. 1465-1471.
Wasserscheid & Keim, Ionic Liquids-New “Solutions” for Transition Metal Catalysis, Angew. Chem. Int. Ed. 2000, 39, pp. 3772-3789.
Sheldon, Roger, Catalytic Reactions in Ionic Liquids, Chem. Commun, 2001, pp. 2399-2407.
Koshar, R. et al, Preparation of B-H-Perfluoro Alkanesulfonic Acids, J. Am. Chem. Soc., vol. 75, 1953, pp. 4595-4596.
Huang, W. et al., “Perfluoro and Polyfluorosulfonic Acids”, Database CA [Online] Chemical Abstracts Service, Columbus, Ohio, XP002412172, Retrieved From STN Database Accession No. 1983:34194 Abstract and Huaxue Xuebau, vol. 40, No. 9, 1982, pp. 821-827.
Coffman D. D. et al., “Addition Reactions of Tetrafluoroethylene” Journal of Organic Chemistry, American Chemical Society, Easton, US, No. 14, 1949, pp. 747-753.
Shiflett, Mark B., et al., “Solubility and Diffusivity of Difluoromethane in Room-Temperature Ionic Liquids”, Database CA [Online] Chemical, Columbus Ohio, XP002412173 Retrieved From STN Database Accession No. 2006:75448 Abstract & Journal of Chem & ENGG Data, 51(2), 483-495, ISSN: 0021-9568, 2006.
Shiflett, Mark B., et al., “Solubility and Diffusivity of 1,1,2,2-Tetrafluoroethane in Room-Temperature Ionic Liquids”, Database CA [Online] Chemical, Columbus Ohio, XP002412174 Retrieved From STN Database Accession No. 2006:253906 Abstract & Fluid Phase Equilibria vol. 242 No. 2, 2006, pp. 220-232.
Liu, Jintao et al, 3-OXA Perfluorononyl Fluorocarbon Surfact, its Synthesis and Application, Database CA [Online] Columbus OH, XP002412175 Retrieved From STN Database Accession No. 2005:414483, Abstract & CN 1 431 037 CN (Shanghai Inst. of Org. Chem., Chinese Academy of Sciences) Jul. 23, 2003.
Del Sesto, R. E. et al, “Tetraalkylphosphonium-Based Ionic Liquids”, Journal of Organometallic Chemistry, Elsevier-Sequoia S.A., Laussanne, CH, vol. 690, No. 10, May 16, 2005, pp. 2536-2542.

Affiliated with

Also associated with

Rating

Ionic liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ionic liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionic liquids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4220804