Organic compounds -- part of the class 532-570 series – Organic compounds – Phosphorus halides
Reexamination Certificate
2007-04-24
2007-04-24
Page, Thurman K. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Phosphorus halides
C562S818000, C568S008000
Reexamination Certificate
active
10511554
ABSTRACT:
The invention relates to a method for producing perfluoroalkyl phosphines, comprising at least one step in which at least one fluoro(perfluoroalkyl)phosphorane is reacted with at least one hydride ion donator, and the use of tris(perfluoroalkyl)phos-phines as perfluoroalkylating reactants.
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patent: 2827285 (2003-01-01), None
Kampa et al., The Synthesis of Tris(perfluoroalkyl)phosphanes, Angewandte Chemie, 1995, 34 (11), 1241-44.
Mahmood et al., Comparative study of tris(trifluoromethyl)phosphine oxide, tris(nonafluorobutyl)phosphine oxide and fluorobis(nonafluorobutyl)phosphine oxide with ammonia and amines, Inorg. Chem.; 1988; 27(17); 2913-2916.
Gilje et al., Preparation and nuclear magnetic resonance parameters of perfluoroalkyl-substituted phosphorus(V) hydrides, Journal of the Chemical Society, Chemical Communications, 1973, 813-814.
Kampa J J: “The Synthesis of tris (Perfluoroalkyl) Phosphanes” Angewandte Chemie. International Edition, Verlag Chemie. Weinheim, DE, Bd. 34, Nr. 11, 1996, Seiten 1241-1244.
Heider Udo
Ignatyev Nikolai
Miller Alexej
Sartori Peter
Schmidt Michael
Merck Patent Gesellschaft
Millen White Zelano & Branigan P.C.
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