Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2006-11-07
2006-11-07
Barts, Samuel (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S101000, C570S123000, C570S162000, C570S246000, C570S247000
Reexamination Certificate
active
07132578
ABSTRACT:
A process for the preparation of trifluoromethyl iodide is provided. The process includes the step of contacting in a reactor a compound represented by the formula:in-line-formulae description="In-line Formulae" end="lead"?CF3—Win-line-formulae description="In-line Formulae" end="tail"?and a compound represented by the formula:in-line-formulae description="In-line Formulae" end="lead"?IFnin-line-formulae description="In-line Formulae" end="tail"?wherein W can be H, Br, Cl, COOH, COCl, COOCH3, COOC2H5, COCH3, COPh, CF3, Si(CH3)3, SPh, SCH3, SSCF3, SSPh, SSCH3, or SO2Cl, wherein n is 1, 3, 5, or 7, and wherein the step of contacting is carried out, at a temperature, pressure and for a length of time sufficient to produce trifluoromethyl iodide. The contacting step can be carried out in the presence or absence of a catalyst and the contacting step can be carried out in the presence or absence of air.
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Nagasaki, Noritaka et al.,Study on a Novel Catalytic Reaction and Its Mechanism for CF31 Synthesis, Catalysis Today (2004), 88(3-4), 121-126 (abstract only).
Lee, KH, et al.,Synthesis of CF31 by Direct Iodination of CF3COOH on Solid Catalyst, Waste Research Team, Hwahak Konghak, (2001) 39(2), 144-149 (abstract only).
Su, D., et al.,A Simple, Novel Method for the Preparation of Trifluoromethyl Iodide and Diidodifluoromethane, Journal of the Chemical Society, Chemical Communications (1992) (11) 807-808 (abstract only).
Naumann et al.,Preparation and Properties of ZnBr(CF3)2L—A Convenient Route for the Preparation of CF31, Journal of Fluoride Chemistry, 67 (1994) 91-93 (article enclosed).
Mukhopadhyay Sudip
Tung Hsueh Sung
Barts Samuel
Honeywell International , Inc.
Szuch Colleen D.
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