WO2003044029A1 - Verfahren zur herstellung von organodiphosphoniten - Google Patents
Verfahren zur herstellung von organodiphosphoniten Download PDFInfo
- Publication number
- WO2003044029A1 WO2003044029A1 PCT/EP2002/012806 EP0212806W WO03044029A1 WO 2003044029 A1 WO2003044029 A1 WO 2003044029A1 EP 0212806 W EP0212806 W EP 0212806W WO 03044029 A1 WO03044029 A1 WO 03044029A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phenyl
- mole
- butyl
- organic base
- group
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 150000007530 organic bases Chemical class 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
- 125000000753 cycloalkyl group Chemical group 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 125000000732 arylene group Chemical group 0.000 claims abstract description 5
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 5
- 125000005549 heteroarylene group Chemical group 0.000 claims abstract description 5
- -1 (i-propyl) phenyl Chemical group 0.000 claims description 21
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000004180 3-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(F)=C1[H] 0.000 claims description 2
- 125000004199 4-trifluoromethylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C(F)(F)F 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000460 chlorine Chemical group 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001424 substituent group Chemical group 0.000 claims description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 2
- 102100024452 DNA-directed RNA polymerase III subunit RPC1 Human genes 0.000 claims 1
- 101000689002 Homo sapiens DNA-directed RNA polymerase III subunit RPC1 Proteins 0.000 claims 1
- 125000002993 cycloalkylene group Chemical group 0.000 abstract description 3
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 abstract 1
- 125000006832 (C1-C10) alkylene group Chemical group 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 150000003254 radicals Chemical class 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003085 diluting agent Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000004679 31P NMR spectroscopy Methods 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical class CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- RFFFKMOABOFIDF-UHFFFAOYSA-N Pentanenitrile Chemical compound CCCCC#N RFFFKMOABOFIDF-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- IMDXZWRLUZPMDH-UHFFFAOYSA-N dichlorophenylphosphine Chemical compound ClP(Cl)C1=CC=CC=C1 IMDXZWRLUZPMDH-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical class CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 2
- XTFIVUDBNACUBN-UHFFFAOYSA-N 1,3,5-trinitro-1,3,5-triazinane Chemical compound [O-][N+](=O)N1CN([N+]([O-])=O)CN([N+]([O-])=O)C1 XTFIVUDBNACUBN-UHFFFAOYSA-N 0.000 description 1
- CZAZXHQSSWRBHT-UHFFFAOYSA-N 2-(2-hydroxyphenyl)-3,4,5,6-tetramethylphenol Chemical compound OC1=C(C)C(C)=C(C)C(C)=C1C1=CC=CC=C1O CZAZXHQSSWRBHT-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- ISRXMEYARGEVIU-UHFFFAOYSA-N n-methyl-n-propan-2-ylpropan-2-amine Chemical compound CC(C)N(C)C(C)C ISRXMEYARGEVIU-UHFFFAOYSA-N 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 125000005270 trialkylamine group Chemical group 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- C07F9/48—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof
- C07F9/4866—Phosphonous acids [RP(OH)2] including [RHP(=O)(OH)]; Thiophosphonous acids including [RP(SH)2], [RHP(=S)(SH)]; Derivatives thereof the ester moiety containing a substituent or structure which is considered as characteristic
- C07F9/4875—Esters with hydroxy aryl compounds
Definitions
- the present invention relates to a process for the preparation of organodiphosphonites I of the formula
- R 1 and R 2 independently substituted or unsubstituted group selected from the group consisting of aryl, heteroaryl, C -C 8 cycloalkyl or C ⁇ -C ⁇ o-alkyl and
- Z is a substituted or unsubstituted group selected from the group consisting of arylene, heteroarylene, C -C 8 cycloalkylene or C ⁇ -C ⁇ o alkylene,
- step b) Treatment of the product obtained in step a) with at least one base equivalent, based on one mol of R 2 PC1, of an organic base to give (R 1_0 ) R 2 PC1 and an essentially insoluble salt of the organic base with HC1 , which was formed by reaction of R 1 0H with R 2 PC1, at a temperature in the range from -25 ° C to 10 ° C,
- Organodiphosphonites of the formula I and catalyst systems which contain such organodiphosphonites are known, for example from WO 99/64155.
- WO 99/64155 describes the reaction of R 2 PC1 2 with one mol R 1 0H, and the subsequent reaction of the (R 1- 0) R 2 PC1 obtained with half a mol, based on one mol (R 1_ 0) R 2 PC1, of a compound HO-Z-OH at a temperature in Range from 40 to 200 ° C.
- the hydrogen halide should preferably be split off purely thermally in the first step. In addition, both steps should be able to be carried out in the presence of a base.
- the object of the present invention was to provide a process which enables the preparation of organodiphosphonites of the formula I in good yield and high selectivity in a simple and economical manner.
- R 1 and R 2 are independently substituted or unsubstituted group selected from the group consisting of aryl, heteroaryl, C 4 -C 8 cycloalkyl or C ⁇ -C ⁇ o _ alkyl
- Z is a substituted or unsubstituted group selected from the group consisting of arylene , Heteroarylene, C -Cs-Cycloal- 'kylene or Ci-Cio-alkylene.
- aryl refers to a monovalent organic radical which is derived from an aromatic hydrocarbon
- heteroaryl a monovalent organic radical derived from a heterocyclic aromatic hydrocarbon
- arylene to a divalent organic radical derived from an aromatic hydrocarbon
- heteroarylene to a divalent organic radical derived from a heterocyclic aromatic hydrocarbon
- Alkyl and “Cycloalkyl” on a monovalent organic radical that differs from a m derived from saturated noncyclic or cyclic hydrocarbon and "alkylene” and “cycloalkylene” to a divalent organic radical which is derived from a saturated noncyclic or cyclic hydrocarbon.
- R 1 useful as R 1 is substituted or unsubstituted aryl, preferably substituted or unsubstituted phenyl, particularly preferably one, two or three identical or different alkyl groups selected from the group consisting of methyl, ethyl, n-propyl, i-propyl, n- Butyl, i-butyl, s-butyl, t-butyl selected substituted phenyl, in particular their 2-iso-propyl-phenyl, 2-iso-propyl-4-methyl-phenyl, 2-iso-propyl-5-methyl-phenyl, 2-tert-butyl-phenyl, 2-tert-butyl-4-Me - Thyl-phenyl, 2-tert-butyl-5-methyl-phenyl, 2-tert-butyl-6-methyl-phenyl, 2, 4-di-tert-butyl-phenyl.
- aryl preferably substituted or unsubstit
- R 2 is substituted or unsubstituted aryl, preferably substituted or unsubstituted phenyl, particularly preferably unsubstituted or substituted with one, two or three identical or different substituents selected from the group consisting of fluorine, chlorine and trifluoromethyl, especially phenyl, 3-fluoro-phenyl, 3, 5-di-fluoro-phenyl, 4-trifluoromethyl-phenyl, 3, 5-di-trifluoroethyl-phenyl.
- Substituted or unsubstituted 2,2′-bisphenolate, 2,2′-bisnaphtholate or 2,2′-C 1 -C 6 -alkylene-bridged bisphenolate come into consideration as group -O-Z-0-.
- Particularly preferred groups O-Z-0 are those of the formulas
- radicals R 3 , R 4 , R 5 and R 6 independently of one another are hydrogen, an alkyl group with 1 to 8 carbon atoms or an alkoxy group with 1 to 8 carbon atoms, preferably hydrogen, an alkyl group with 1 to 4 carbon atoms or one Alkoxy group with 1 to 4 carbon atoms, such as hydrogen, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl, s-butyl, t-Butyl, methoxy, ethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy.
- the organodiphosphonites I are obtained by:
- step b) treating the product obtained in step a) with at least one base equivalent, based on one mol of R 2 PC1, of an organic base to give (R 1_ 0) R 2 PC1 and an essentially insoluble salt of the organic base with HCl , which was formed by reaction of R 1 0H with R 2 PCl, at a temperature in the range from -25 ° C to 10 ° C, preferably in the range from -10 ° C to 0 ° C, c) reaction of (R 1- 0) R 2 PC1 with about half a mole, based on one mole (R 1_ 0) R 2 PC1, of a compound HO-Z-OH, in which case in which in step b) less than two base equivalents of organic base, based on one mol of R 2 PC1, were used, further organic base is added in such an amount that the amount of organic base obtained in steps a), b) and c ) was used, is at least two base equivalents, based on one mol of R 2 PC
- Organic amines are advantageously considered as organic bases, preferably trialkylamines, in particular those selected from the group consisting of tributylamine, benzyldimethylamine, triethylamine, diisopropylmethylamine and mixtures thereof.
- the salt of the organic base formed as a by-product can be removed from the product mixture, for example by extraction, preferably with water as the extraction agent.
- a liquid preferably organic, in particular anhydrous diluent in which the organodiphosphonite I is soluble and the salt formed from the organic base and HCl, on the other hand is insoluble.
- a liquid preferably organic, in particular anhydrous diluent in which the organodiphosphonite I is soluble and the salt formed from the organic base and HCl, on the other hand is insoluble.
- the term “insoluble” has the meaning defined in DAB (German Medicinal Product Book) 7.
- liquid diluents which are not reactive towards the chemical compounds used and the products obtained in steps a), b) and c) and the HC1 formed in the reaction, in the organodiphosphonite I and the precursors used for its preparation are particularly suitable are soluble, the term "soluble" in the sense of the present invention having the meaning defined in DAB (German Pharmacopoeia) 7, and the salt from the organic base and HC1 being insoluble, and having a melting point below the desired reaction temperature.
- Suitable liquid diluents are aliphatic hydrocarbons, aromatic hydrocarbons, ethers or aliphatic nitriles.
- Liquid diluents are preferably selected from the group consisting of ethers, hexanes, heptanes, octanes, Cyclohexane, methylcyclohexane, benzene, toluene, xylene, acetonitrile, proprionitrile, valeronitrile, pentanenitrile and mixtures thereof.
- the liquid diluent used can be removed in a conventional manner, such as by distillation.
- the purity of the product obtained in this way is usually sufficient for further applications.
- the purity of the product can be increased by methods known per se, such as fractional distillation, thin-film evaporation (Saitibay distillation) or crystallization.
- the examples were carried out under nitrogen with an oxygen content of less than 100 ppm and a water content of less than 100 ppm.
- the mixture was allowed to come to a temperature of 25 ° C. and was stirred at this temperature for a further 6 h.
- the reaction mixture was extracted three times with 250 ml of water or filtered off from triethylamine hydrochloride and the volatile constituents were removed in vacuo.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002352014A AU2002352014A1 (en) | 2001-11-19 | 2002-11-15 | Method for the production of organodiphosphonites |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10156292.6 | 2001-11-19 | ||
DE2001156292 DE10156292A1 (de) | 2001-11-19 | 2001-11-19 | Verfahren zur Herstellung von Organodiphosphoniten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003044029A1 true WO2003044029A1 (de) | 2003-05-30 |
Family
ID=7705967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/012806 WO2003044029A1 (de) | 2001-11-19 | 2002-11-15 | Verfahren zur herstellung von organodiphosphoniten |
Country Status (5)
Country | Link |
---|---|
AR (1) | AR037175A1 (de) |
AU (1) | AU2002352014A1 (de) |
DE (1) | DE10156292A1 (de) |
TW (1) | TW200406418A (de) |
WO (1) | WO2003044029A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006040023A1 (de) | 2004-10-08 | 2006-04-20 | Basf Aktiengesellschaft | Verfahren zur reinigung von phosphorhaltigen chelat-liganden |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY138064A (en) | 2002-01-24 | 2009-04-30 | Basf Ag | Method for the separation of acids from chemical reaction mixtures by means of ionic fluids |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999006416A1 (en) * | 1997-07-29 | 1999-02-11 | E.I. Du Pont De Nemours And Company | Selective synthesis of organodiphosphite compounds |
WO1999064155A1 (de) * | 1998-06-05 | 1999-12-16 | Basf Aktiengesellschaft | Katalysator, umfassend einen komplex eines metalls der viii. nebengruppe auf basis eines zweizähnigen phosphonitliganden und verfahren zur herstellung von nitrilen |
-
2001
- 2001-11-19 DE DE2001156292 patent/DE10156292A1/de not_active Withdrawn
-
2002
- 2002-10-31 TW TW91132265A patent/TW200406418A/zh unknown
- 2002-10-31 AR ARP020104151 patent/AR037175A1/es not_active Application Discontinuation
- 2002-11-15 AU AU2002352014A patent/AU2002352014A1/en not_active Abandoned
- 2002-11-15 WO PCT/EP2002/012806 patent/WO2003044029A1/de not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999006416A1 (en) * | 1997-07-29 | 1999-02-11 | E.I. Du Pont De Nemours And Company | Selective synthesis of organodiphosphite compounds |
WO1999064155A1 (de) * | 1998-06-05 | 1999-12-16 | Basf Aktiengesellschaft | Katalysator, umfassend einen komplex eines metalls der viii. nebengruppe auf basis eines zweizähnigen phosphonitliganden und verfahren zur herstellung von nitrilen |
Non-Patent Citations (1)
Title |
---|
PASTOR S.D. ET AL.: "6H-Dibenz(c,e)(1,2) oxaphosphorins: synthesis and chemistry", PHOSPHORUS SULFUR AND THE RELATED ELEMENTS., vol. 31, no. 1-2, 1987, GORDON AND BREACH - HARWOOD ACADEMIC, CH, pages 71 - 76, XP008014332, ISSN: 0308-664X * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006040023A1 (de) | 2004-10-08 | 2006-04-20 | Basf Aktiengesellschaft | Verfahren zur reinigung von phosphorhaltigen chelat-liganden |
Also Published As
Publication number | Publication date |
---|---|
TW200406418A (en) | 2004-05-01 |
AU2002352014A1 (en) | 2003-06-10 |
AR037175A1 (es) | 2004-10-27 |
DE10156292A1 (de) | 2003-05-28 |
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