Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2007-05-08
2007-05-08
Parsa, J. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C570S139000, C570S172000
Reexamination Certificate
active
10516940
ABSTRACT:
The present invention provides a metallic copper catalyst for use in an ethylene addition reaction to polyfluoroalkyl iodides, a process for efficiently producing a polyfluoroalkylethyl iodide using such a metal copper catalyst in an ethylene addition reaction to a polyfluoroalkyl iodide, and a process for efficiently producing a polyfluoroalkylethyl iodide from a polyfluoroalkyl iodide using the same metallic copper catalyst in a telomerization reaction and a subsequent ethylene addition reaction.
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Brace; “Syntheses with perfluoroalkyl radicals from perfluoroalkyl iodides. A rapid survey of synthetic possibilities with emphasis on practical applications. Part one: alkenes, alkynes and allylic compounds”; J. of Fluorine Chemistry 93 (1999) pp. 1-25. (See specification).
Chen et al; “Copper-Induced telomerization of Tetrafluoroethylene with Fluoroalkyl Iodides”; J. Fluorine Chemistry 36 (1987) pp. 483-489. (See Specification).
Von Werner; “Reactions of perfluoroalkyl iodides with CC-multiple bonds induced by transition metal centers”; J. Fluorine Chemistry 28 (1985) pp. 229-233. (See Specification).
International Search Report dated Sep. 2, 2003.
Funakoshi Yoshirou
Miki Jun
Armstrong Kratz Quintos Hanson & Brooks, LLP
Daikin Industries Ltd.
Parsa J.
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