Organic compounds -- part of the class 532-570 series – Organic compounds – Boron containing
Reexamination Certificate
2006-01-31
2006-01-31
Richter, Johann (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Boron containing
C568S001000
Reexamination Certificate
active
06992224
ABSTRACT:
Present invention relates to a process for the manufacture of fluorinated alcohols as well as borates which are employed in the manufacture of the fluorinated alcohols. Fluorinated alcohols of the formulae HOCHRCF(CF3)CHFCF(CF3)2and HOCHRCF(CF(CF3)2)CHFCF3, HOCHRCF(CF2CF3)CH(CF3)2and HOCHRC(CF3)2CHFCF2CF3are made by heating a mixture of a borate of the formula (RCH2O)3B, wherein R═H or a C1to C7alkyl group, with perfluoro-4-methyl-2-pentene or perfluoro-2-methyl-2-pentene and a free-radical initiator to form a mixture of borates, optionally separating the mixture of borates from any reactants, solvents, and by-products; hydrolyzing the mixture of borates to form a hydrolysis product mixture; and separating the alcohols from the hydrolysis product mixture.
REFERENCES:
patent: 3457247 (1969-07-01), Fukui et al.
patent: 3756830 (1973-09-01), Waack et al.
patent: 6187969 (2001-02-01), Yamaguchi et al.
patent: 6274704 (2001-08-01), Fukai et al.
patent: 6649719 (2003-11-01), Moore et al.
patent: 6673976 (2004-01-01), Nair et al.
patent: 2002/0042470 (2002-04-01), Moore et al.
Chambers et al., Free Radical Chemistry. Part 3, Substituent Effects in Additions of Ethers to Fluorinated Alkenes, J. Chem. Soc. Perkin Trans, 1, 1985, 2209-2213.
LaZerte, J.D., and R. J. Koshar. “The Free-radical Catalyzed Addition of Alcohols and Aldehydes to Perfluoroolefins.” Fluorine Symposium, 124thMeeting of the American Chemical Society. Chicago, IL, 1953, PP. 910-914.
Chambers, Richard D., Brian Grievson, and Noel M. Kelly. “Free Radical Chemistry. Part 3. Substituent Effects in Additions of Ethers to Fluorinated Alkenes.” Journal of Chemical Society. Perkin Transactions, 1985, pp. 2209-2213.
Kurykin, M. A., L. S. German, L. I. Kartasheva, A.K. Pikaev. “Radiochemical addition of alcohols to perfluoro-2-alkenes.” Journal of Fluorine Chemistry, vol. 77. 1996, Pp. 193-194.
Ishikawa, Nobuo, et al “Structures of the products derived from radical addition of alcohols and anhydrides to hexafluoropropene dimmer” Nippon Kagaku Kaishi, 1974 (7), 1240-4. Chemical Abstracts 81:119432e.
Ma Jingji
Puy Michael Van Der
Samuels George J.
Stachura Leonard M.
Chess Deborah M.
Honeywell International , Inc.
Nwaonicha Chukwuma
Richter Johann
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