WO2003087110A1 - Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze - Google Patents

Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze Download PDF

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Publication number
WO2003087110A1
WO2003087110A1 PCT/EP2003/002740 EP0302740W WO03087110A1 WO 2003087110 A1 WO2003087110 A1 WO 2003087110A1 EP 0302740 W EP0302740 W EP 0302740W WO 03087110 A1 WO03087110 A1 WO 03087110A1
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Prior art keywords
perfluoroalkyl
bis
phosphorane
salts
phosphinic acids
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German (de)
English (en)
French (fr)
Inventor
Urs Welz-Biermann
Nikolai Ignatyev
Michael Weiden
Udo Heider
Andriy Kucheryna
Helge Willner
Peter Sartori
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Merck Patent GmbH
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Merck Patent GmbH
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Priority to AT03712030T priority Critical patent/ATE472368T1/de
Priority to DE50312844T priority patent/DE50312844D1/de
Priority to BR0309222-4A priority patent/BR0309222A/pt
Priority to EP03712030A priority patent/EP1495035B1/de
Priority to CA002482656A priority patent/CA2482656A1/en
Priority to AU2003218774A priority patent/AU2003218774A1/en
Priority to US10/511,157 priority patent/US7202379B2/en
Priority to JP2003584066A priority patent/JP4550429B2/ja
Priority to KR1020047016411A priority patent/KR100937125B1/ko
Publication of WO2003087110A1 publication Critical patent/WO2003087110A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0231—Halogen-containing compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
    • B01J31/0278—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre
    • B01J31/0281—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre the nitrogen being a ring member
    • B01J31/0284—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre the nitrogen being a ring member of an aromatic ring, e.g. pyridinium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
    • B01J31/0287—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing atoms other than nitrogen as cationic centre
    • B01J31/0288—Phosphorus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
    • B01J31/0287—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing atoms other than nitrogen as cationic centre
    • B01J31/0289—Sulfur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
    • B01J31/0287—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing atoms other than nitrogen as cationic centre
    • B01J31/0291—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing atoms other than nitrogen as cationic centre also containing elements or functional groups covered by B01J31/0201 - B01J31/0274
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C211/00—Compounds containing amino groups bound to a carbon skeleton
    • C07C211/62—Quaternary ammonium compounds
    • C07C211/63—Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
    • C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
    • C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/30—Phosphinic acids [R2P(=O)(OH)]; Thiophosphinic acids ; [R2P(=X1)(X2H) (X1, X2 are each independently O, S or Se)]
    • C07F9/301—Acyclic saturated acids which can have further substituents on alkyl
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/54—Quaternary phosphonium compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/54—Quaternary phosphonium compounds
    • C07F9/5456—Arylalkanephosphonium compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/90—Catalytic systems characterized by the solvent or solvent system used
    • B01J2531/98—Phase-transfer catalysis in a mixed solvent system containing at least 2 immiscible solvents or solvent phases
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/14—Derivatives of phosphoric acid

Definitions

  • the present invention relates to a process for the preparation of bis (perfluoroalkyl) phosphinic acids comprising at least the reaction of at least one difluorotris (perfluoroalkyl) phosphorane or at least one trifluorobis (perfluoroalkyl) phosphorans with hydrogen fluoride in a suitable reaction medium and the heating of the reaction mixture thus obtained.
  • the invention also relates to salts of bis (perfluoroalkyl) phosphinic acids and their uses.
  • Bis (perfluoroalkyl) phosphinic acids have long been known and are suitable for the production of various chemicals, such as, for example, corresponding methyl esters, which are strong methylation reagents (NV Pavlenko et al., Zh. Obshch. Khim., 59, No. 3 (1989), pages 534-
  • the bis (perfluoroalkyl) phosphinic acids and their corresponding salts are also used on account of their surface-active action (DE-OS 22 33 941; NN Kalibabchuk et al., Teor. Eksp. Khim., 11, No. 6 (1975), pages 838- 841; NN Kalibabchuk et al., Ukr. Khim. Zh., 44, No. 1 (1978), pages 67-70) and in fuel cells (T. Mahmood, Inorganic Chemistry, 25 (1986), pages 3128-3131) ,
  • the lithium salt of bis (pentafluoroethyl) phosphinic acid is a promising candidate for use as a conductive salt in
  • Lithium batteries (F. Kita et al., Proc Electrochem. Soc, 99-25, (2000), pages 480-484; F. Kita et al., J. Power Sources, 90, No. 1 (2000), pages 27 -32).
  • a difluorotris (perfluoroalky!) Phosphorane is reacted in a first step
  • Another method is the direct hydrolysis of difluorotris (perfluoroalkyl) phosphoranes to bis (perfluoroalkyl) phosphinic acids (T. Mahmood et al, Inorganic Chemistry, 27 (1988), pages 2913-2916).
  • a disadvantage of this process is that the hydrolysis is very slow due to the very poor miscibility of the phosphoranes with water, especially the phosphoranes with long alkyl chains, and usually leads to very complex product mixtures.
  • the object of the present invention was therefore to provide a process which enables the simple and inexpensive preparation of bis (perfluoroalkyl) phosphinic acids in good yields.
  • the Bis (perfluoroalkyl) phosphinic acids can be obtained in high purity.
  • Another object was to provide salts of bis (perfluoroalkyl) phosphinic acids.
  • Trifluorbis (perfluoroalkyl) phosphoranes can be carried out by customary methods known to the person skilled in the art.
  • These compounds are preferably prepared by electrochemical fluorination of suitable starting compounds, as described in V. Ya. Semenii et al., Zh. Obshch.Khim., 55, No. 12 (1985), pages 2716-2720; N. Ignatiev, J. of Fluorine Chem., 103 (2000), pages 57-61 and WO 00/21969.
  • the corresponding descriptions are hereby introduced as a reference and are considered part of the disclosure.
  • Difluorotris (perfluoroalkyl) phosphoranes and / or two or more trifluorobis (perfluoroalkyl) phosphoranes are used in the process according to the invention.
  • difluorotris (perfluoroalkyl) phosphorane compounds can be selected from the group consisting of difluorotris (pentafluoroethyl) phosphorane, difluorotris (n-nonafluorobutyl) phosphorane and difluorotris (n-heptafluoropropyl) phosphorane.
  • trifluorobis (perfluoroalkyl) phosphorane compound trifluorobis (n-nonafluorobutyl) phosphorane can be used in the process according to the invention.
  • reaction of at least one difluorotris (perfluoroalkyl) phosphorane or at least one trifluorobis (perfluoroalkyl) phosphorans with hydrogen fluoride in a suitable reaction medium is preferably carried out according to a process as described in DE 101 30 940.6.
  • the corresponding description is hereby introduced as a reference and is considered part of the disclosure.
  • the temperature for heating the reaction mixture obtained in process step a) in process step b) is preferably room temperature to 150 ° C., particularly preferably 100 ° C. to 145 ° C. and very particularly preferably 135 to 140 ° C.
  • reaction mixture obtained after process step a) is preferably processed according to process step b) for 1 to 150 hours, particularly preferably heated for 10 to 25 hours and very particularly preferably for 18 to 22 hours.
  • the reaction mixture obtained according to process step a) can preferably also be used in a closed, pressure-tight device, e.g. heat an autoclave at elevated temperature, preferably from 140 ° C to 200 ° C.
  • reaction products can, if appropriate, be separated off, optionally collected and optionally isolated using customary processes familiar to the person skilled in the art, for example by condensation in suitable cold traps.
  • Hydrogen fluoride and monohydroperfluoroalkanes are themselves valuable chemical raw materials that can be put to good use. So it is among other things possible to collect and recycle the hydrogen fluoride so that it is available for the reaction according to process step a).
  • the preparation of bis (perfluoroalkyl) phosphinic acids by the process according to the invention can be followed by purification and, if appropriate, isolation of these compounds by customary processes known to those skilled in the art.
  • the purification is preferably carried out by distillation, preferably under reduced pressure at elevated temperatures.
  • the respective salts of bis (perfluoroalkyl) phosphinic acid can preferably be isolated by neutralizing the bis (perfluoroalkyl) phosphinic acids.
  • Bis (perfluoroalkyl) phosphinic acid is carried out by reaction with at least one customary base known to the person skilled in the art, preferably in solution.
  • the bis (perfluoroalkyl) phosphinic acids are neutralized with bases, preferably selected from the group of hydroxides, oxides, hydrides, amides, carbonates, phosphines or amines.
  • the resulting salt is processed in a manner known to the person skilled in the art.
  • the salt can be washed and then dried.
  • the application also includes salts of
  • Bis (perfluoroalkyl) phosphinic acids selected from the group of the partially and peralkylated ammonium, phosphonium, sulfonium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, imidazolium, pyrazolium, thiazolium, oxazolium and triazolium salts salts. Salts of bis (perfluoroalkyl) phosphinic acids with a cation selected from the group are preferred
  • R 1 to R 5 are identical or different, optionally connected directly to one another by a single or double bond and each, individually or together, has the following meanings:
  • C n F ( 2 n + ⁇ -x) H ⁇ can be substituted with 1 ⁇ n ⁇ 6 and 0 ⁇ x ⁇ 2n + 1.
  • these salts can be used as ionic liquids, phase transfer catalysts or surfactants.
  • the NMR spectra were recorded with a Bruker Avance 300 NMR spectrometer at the following frequencies:
  • the bis (pentafluoroethyl) phosphinic acid was distilled at 125 Pa under reduced pressure. The boiling point was 63-64 ° C.
  • the bis (pentafluoroethyl) phosphinic acid thus obtained was characterized by means of 19 F, 31 P and 1 H NMR spectroscopy and by elemental analysis:
  • the reaction mixture was at an oil bath temperature of 115 Heated to reflux for 108 hours for 120 ° C.
  • water-HF solution was distilled off from the reaction mixture, 3.97 g of almost pure bis (pentafluoroethyl) phosphinic acid, (C 2 F 5 ) 2 P (0) OH, was obtained.
  • the yield was 78.8% based on the difluorotris (pentafluoroethyl) phosphorane.
  • the product was characterized by F-NMR spectroscopy by means of 1 9. the corresponding signals were consistent with the signals mentioned under Example 1a.
  • the bis (n-nonafluorobutyl) phosphinic acid was distilled at 125 Pa under reduced pressure. The boiling point was 124 ° C. Upon cooling, the bis (n-nonafluorobutyl) phosphinic acid thus obtained solidifies to a solid with a melting point of 103-104 ° C.
  • the reaction mixture was distilled off, 6.34 g of almost pure bis (n-nonafluorobutyl) phosphinic acid being obtained.
  • the yield was 83.2%, based on the trifluorobis (n-nonafluorobutyl) phosphorane used.
  • the product thus obtained was characterized by means of ⁇ F-NMR spectroscopy. The corresponding signals matched the signals mentioned in Example 2a.
  • Bis (pentafluoroethyl) phosphinic acid were neutralized in 50 cm 3 of water with 7.48 g of a 20% by weight aqueous solution of tetraethylammonium hydroxide. The water was then evaporated and the residue thus obtained was dried under reduced pressure of 120 Pa at 70 ° C. (bath temperature).
  • tetraethylammonium bis (pentafluoroethyl) phosphinate was characterized by 19 F, 31 P and 1 H NMR spectroscopy and by elemental analysis:
  • the potassium bis (pentafluoroethyl) phosphinate was characterized by 19 F and 31 P NMR spectroscopy and by elemental analysis:
  • the tetraethylammonium bis (n-nonafluorobutyl) phosphinate was characterized by 19 F, 31 P and 1 H NMR spectroscopy and by elemental analysis:
  • Diammonium bis (pentafluoroethyl) phosphinate with a melting point of 208-210 ° C obtained.
  • the yield was 96.1%, based on the bis (pentafluoroethyl) phosphinic acid used.
  • the hexamethylene-1, 6-diammonium bis (pentafluoroethyl) phosphinate was characterized by means of 19 F, 3 P and 1 H NMR spectroscopy and by elemental analysis:
  • hexamethylene-1, 6-diammonium bis (n-nonafluorobutyl) phosphinate was characterized by means of 19 F, 31 P and 1 H NMR spectroscopy and by elemental analysis:
  • Triphenylbenzylphosphoniumbis (n-nonafluorbutyl) phosphinate is characterized by 19 F, 31 P and 1 H NMR spectroscopy and by elemental analysis:
  • a solution of 2.08 g (11.9 mmol) of 1-butyl-3 is added to 4.05 g (11.9 mmol) of the potassium bis (pentafluoroethyl) phosphinate prepared in Example 4 in 15 cm 3 of water with constant stirring - Methylimidazoliumchloride in 3 cm 3 of water at room temperature. An oily precipitate formed.
  • the water is evaporated off under reduced pressure and the residue thus obtained is dried under reduced pressure of 120 Pa and a bath temperature of 60 ° C. for 1 hour.
  • 10 cm 3 of isopropyl alcohol are added to the residue and a white precipitate is filtered off, which is washed twice with 5 cm 3 of isopropyl alcohol.
  • the isopropyl alcohol is evaporated off under reduced pressure and the residue thus obtained is dried under reduced pressure of 120 Pa and a bath temperature of 80 ° C. for 2 hours.

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PCT/EP2003/002740 2002-04-16 2003-03-17 Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze Ceased WO2003087110A1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
AT03712030T ATE472368T1 (de) 2002-04-16 2003-03-17 Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze
DE50312844T DE50312844D1 (de) 2002-04-16 2003-03-17 Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze
BR0309222-4A BR0309222A (pt) 2002-04-16 2003-03-17 Processo para preparação de ácidos bis (perfluoroalquil) fosfìnicos e seus sais
EP03712030A EP1495035B1 (de) 2002-04-16 2003-03-17 Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäuren und deren salze
CA002482656A CA2482656A1 (en) 2002-04-16 2003-03-17 Method for the production of bis(perfluoroalkyl)phosphinic acids and the salts thereof
AU2003218774A AU2003218774A1 (en) 2002-04-16 2003-03-17 Method for the production of bis(perfluoroalkyl)phosphinic acids and the salts thereof
US10/511,157 US7202379B2 (en) 2002-04-16 2003-03-17 Process for the preparation of bis(perfluoroalkyl)phosphinic acids and salts thereof
JP2003584066A JP4550429B2 (ja) 2002-04-16 2003-03-17 ビス（パーフルオロアルキル）ホスフィン酸およびこの塩の製造方法
KR1020047016411A KR100937125B1 (ko) 2002-04-16 2003-03-17 비스(퍼플루오로알킬)포스핀산 및 이의 염의 제조 방법

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DE10216997A DE10216997A1 (de) 2002-04-16 2002-04-16 Verfahren zur Herstellung von Bis(perfluoralkyl)phosphinsäuren und deren Salze
DE10216997.7 2002-04-16

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Cited By (11)

* Cited by examiner, † Cited by third party
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WO2005049555A1 (de) * 2003-11-17 2005-06-02 Merck Patent Gmbh Verfahren zur herstellung von organischen salzen mit bis(perfluoralkyl)phosphinat-anionen
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DE102007004698A1 (de) 2007-01-31 2008-08-07 Merck Patent Gmbh Verbindungen enthaltend Organofluorochlorophosphatanionen
WO2007090533A3 (de) * 2006-02-06 2008-09-25 Cognis Ip Man Gmbh Verfahren zur herstellung organischer substanzen
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US7576242B2 (en) 2003-11-17 2009-08-18 Merck Patent Gmbh Process for the preparation of organic salts containing bis(perfluoroalkyl) phosphinate anions
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WO2007090533A3 (de) * 2006-02-06 2008-09-25 Cognis Ip Man Gmbh Verfahren zur herstellung organischer substanzen
US8669114B2 (en) 2006-05-17 2014-03-11 Philipps-Universitaet Marburg Hydrophobic ionic liquids
DE102007004698A1 (de) 2007-01-31 2008-08-07 Merck Patent Gmbh Verbindungen enthaltend Organofluorochlorophosphatanionen
US8378157B2 (en) 2008-07-25 2013-02-19 MERCK Patent Gesellschaft mit beschränkter Haftung Method for producing bis(fluoralkyl)phosphinic acid chlorides or fluoralkylphosphonic acid chlorides
DE102008035174A1 (de) 2008-07-28 2010-02-11 Merck Patent Gmbh Verfahren zur Herstellung von Bis(fluoralkyl)-phosphinsäure oder Fluoralkylphosphonsäure
DE102011108324A1 (de) 2011-07-25 2013-01-31 Merck Patent Gmbh Verfahren zur Herstellung von Bis(perfluoralkyl)phosphinsäureanhydriden
WO2013013766A1 (de) 2011-07-25 2013-01-31 Merck Patent Gmbh Verfahren zur herstellung von bis(perfluoralkyl)phosphinsäureanhydriden
WO2014005668A1 (de) * 2012-07-02 2014-01-09 Merck Patent Gmbh Verfahren zur herstellung von tris(perfluoralkyl)phosphinoxiden und bis(perfluoralkyl)phosphinsäuren
US9346838B2 (en) 2012-07-02 2016-05-24 Merck Patent Gmbh Process for the preparation of tris(perfluoroalkyl)phosphine oxides and bis(perfluoroalkyl)phosphinic acids

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