- COMPOUNDS WITH (PERFLUOROALKYL) FLUOROHYDROGENPHOSPHATE ANIONS
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The present invention relates to a process for the preparation of compounds with (perfluoroalkyl)fluorohydrogenphosphate anion, and to compounds containing (perfluoroalkyl)fluorohydrogenphosphate anion and to the use thereof.
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Page/Page column 15
(2012/10/23)
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- PROCESS FOR THE PREPARATION OF BIS(FLUOROALKYL)PHOSPHINIC ACID OR FLUOROALKYLPHOSPHONIC ACID
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The invention relates to a process for the preparation of bis(fluoroalkyl)phosphinic acid and/or fluoroalkylphosphonic acid by reaction of, monofluoroalkyltetrafluorophosphorane bis(fluoroalkyl)trifluorophosphorane or tris(fluoroalkyl)difluorophosphorane with water.
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Page/Page column 3-4
(2011/06/23)
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- Reaction of perfluoroalkyl Grignard reagents with phosphorus trihalides: A new route to perfluoroalkyl-phosphonous and-phosphonic acids
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The reaction of perfluoroalkyl Grignard reagents with phosphorus(III) halides was explored. In the process a new convenient, one-pot, high yield method for the synthesis of (perfluoroalkyl)phosphonic acids has been developed. Perfluoroalkyl Grignard reagents react with phosphorus trichloride or phosphorus tribromide to form (perfluoroalkyl)phosphonous dihalides. Hydrolysis gives the corresponding (perfluoroalkyl)phosphonous acids. Oxidation of the phosphonous acids with H2O2 produces (perfluoroalkyl) phosphonic acids in 60-78% overall yields, based on the corresponding perfluoroalkyl iodide. The X-ray crystal structures of the toluidinium salts, [MeC6H4NH3]2[C2F 5PO3] and [MeC6H4NH 3][C8F17P(O)2OH], are reported.
- Hosein, Adil I.,Le Goff, Xavier F.,Ricard, Louis,Caffyn, Andrew J. M.
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experimental part
p. 1484 - 1490
(2011/04/23)
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- Perfluoroalkanoic hydroformed mono-, bis (perfluorolefin alkyl) acid synthesis of salt and perfluorolefin alkylphosphonic
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The present invention relates to a process for the preparation of monohydroperfluoroalkanes, bis(perfluoroalkyl)phosphinates and perfluoroalkylphosphonates which comprises at least the treatment of at least one perfluoroalkylphosphorane with at least one base in a suitable reaction medium.
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Page/Page column 20
(2008/06/13)
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