Direct one-step synthesis of trifluoromethyl iodide

Details Direct one-step synthesis of trifluoromethyl iodide Direct one-step synthesis of trifluoromethyl iodide

2005-12-20

2005-12-20

Price, Elvis O. (Department: 1621)

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

Organic compounds

Halogen containing

C570S101000, C570S123000, C570S162000, C570S246000, C570S247000, C570S248000, C570S250000, C570S252000, C570S254000

Reexamination Certificate

active

06977316

ABSTRACT:
A catalytic one-step process for the production of CF3I by reacting, preferably in the presence of a source of oxygen, a source of iodine with a reactant of the formula:in-line-formulae description="In-line Formulae" end="lead"?CF3Rin-line-formulae description="In-line Formulae" end="tail"?where R is —SH, —S—S—CF3, —S-phenyl, or —S—Si—(CH3)3. The catalyst may be a metal salt such as salts of Cu, Hg, Pt, Pd, Co, Mn, Rh, Ni, V, TI, Ba, Cs, Ca, K and Ge and mixtures thereof, preferably on a support such as MgO, BaO and CaO, BaCO3, CsNO3, Ba (NO3)2, activated carbon, basic alumina, and ZrO2.

REFERENCES:
patent: 4794200 (1988-12-01), Tordeux et al.
patent: 5892136 (1999-04-01), Nagasaki et al.
patent: 0266281 (1987-09-01), None
European Search Report, dated Jan. 5, 1998, 1 page.
De-Bao Su et al.,Simple, Novel Method for the Preparation of Trifluoromethyl Iodide and Diiododifluoromethane,Shanghai Institute of Organic Chemistry, Academia Sinica.
Naumann et al,Preparation and Properties of ZnBr(CF3)•2L—A Convenient Route for the Preparation of CF3I.,Institute for Anorganische Chemie, 1994.
Chiriac et al.,Obtinerea si purfiicarea CF3I, CF3Br, CF3D, pentru separari izotopice laser,Revista de Chimie, 1982.
Nagasaki et al.,The Development of a Novel Catalytic Technology for CF3I Manufacture,Halon Options Technical Working Conference, May 2000.
Glass et al.,Gas Phase Combustion Suppression of Various Fuels by CF3I,Halon Options Technical Working Conference, Apr. 1999.
Dhooge et al.,Low Environmental Impact, High Performance Foam Blowing Agents Based on Iodofluorcarbons,Environmental and Technology Education Center.
F-Tech's Position Towards Commercialization of its Novel CF3I Technology,Halon Options Technical Working Conference, May 2000.
Abstract of DE 1805457.
Abstract of JP 52068110.
Abstract,Study on a Novel Catalytic Reaction and its Mechanism for CF3I Synthesis.
Abstract,A Simple, Novel Method for the Preparation of Trifluoromethyl Iodide and Diiododifluoromethane.
Abstract,Synthesis of CF3I by Direct Iodination of CF3COOH on Solid Catalyst.
Abstract,Synthesis and Purification of Iodotrifluoromethane, Bromotrifluormethane, Trifluormethane-d1 for Laser Isotope Separation.

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