SK61297A3 - Process for the manufacture of n-phosphonomethylglycine - Google Patents
Process for the manufacture of n-phosphonomethylglycine Download PDFInfo
- Publication number
- SK61297A3 SK61297A3 SK612-97A SK61297A SK61297A3 SK 61297 A3 SK61297 A3 SK 61297A3 SK 61297 A SK61297 A SK 61297A SK 61297 A3 SK61297 A3 SK 61297A3
- Authority
- SK
- Slovakia
- Prior art keywords
- phosphonomethylglycine
- acid
- alkali metal
- formaldehyde
- range
- Prior art date
Links
- XDDAORKBJWWYJS-UHFFFAOYSA-N glyphosate Chemical compound OC(=O)CNCP(O)(O)=O XDDAORKBJWWYJS-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008569 process Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 106
- MGRVRXRGTBOSHW-UHFFFAOYSA-N (aminomethyl)phosphonic acid Chemical compound NCP(O)(O)=O MGRVRXRGTBOSHW-UHFFFAOYSA-N 0.000 claims abstract description 62
- -1 alkali metal cyanide Chemical class 0.000 claims abstract description 44
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 38
- 239000002253 acid Substances 0.000 claims abstract description 27
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 12
- 239000011707 mineral Substances 0.000 claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 33
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 23
- 239000011541 reaction mixture Substances 0.000 claims description 22
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical group N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 claims description 17
- 230000007062 hydrolysis Effects 0.000 claims description 13
- 238000006460 hydrolysis reaction Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 4
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract description 7
- 239000005562 Glyphosate Substances 0.000 abstract 1
- 229940097068 glyphosate Drugs 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 51
- 239000000243 solution Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 13
- 239000000376 reactant Substances 0.000 description 11
- LTYRAPJYLUPLCI-UHFFFAOYSA-N glycolonitrile Chemical compound OCC#N LTYRAPJYLUPLCI-UHFFFAOYSA-N 0.000 description 9
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- AZIHIQIVLANVKD-UHFFFAOYSA-N N-(phosphonomethyl)iminodiacetic acid Chemical compound OC(=O)CN(CC(O)=O)CP(O)(O)=O AZIHIQIVLANVKD-UHFFFAOYSA-N 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical class [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 2
- OHWRASKXEUIFFB-UHFFFAOYSA-N NCP(O)=O Chemical compound NCP(O)=O OHWRASKXEUIFFB-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- VFCAUIASFOLMEI-UHFFFAOYSA-L disodium;phosphonatomethanamine Chemical compound [Na+].[Na+].NCP([O-])([O-])=O VFCAUIASFOLMEI-UHFFFAOYSA-L 0.000 description 2
- 150000004698 iron complex Chemical class 0.000 description 2
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 2
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- MHRCKCSJEGJALU-UHFFFAOYSA-N aminomethylphosphonic acid 2-(phosphonomethylamino)acetic acid Chemical compound P(=O)(O)(O)CNCC(=O)O.NCP(O)(O)=O MHRCKCSJEGJALU-UHFFFAOYSA-N 0.000 description 1
- VQRNNBQEFFKGLU-UHFFFAOYSA-N aminomethylphosphonic acid;formaldehyde Chemical compound O=C.NCP(O)(O)=O VQRNNBQEFFKGLU-UHFFFAOYSA-N 0.000 description 1
- MPWDAARWOZFMLI-UHFFFAOYSA-N aminomethylphosphonic acid;iron Chemical compound [Fe].NCP(O)(O)=O MPWDAARWOZFMLI-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000008098 formaldehyde solution Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- YACKEPLHDIMKIO-UHFFFAOYSA-N methylphosphonic acid Chemical compound CP(O)(O)=O YACKEPLHDIMKIO-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- NRZWQKGABZFFKE-UHFFFAOYSA-N trimethylsulfonium Chemical class C[S+](C)C NRZWQKGABZFFKE-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material 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
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/3804—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)] not used, see subgroups
- C07F9/3808—Acyclic saturated acids which can have further substituents on alkyl
- C07F9/3813—N-Phosphonomethylglycine; Salts or complexes thereof
-
- 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
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
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)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9423254A GB9423254D0 (en) | 1994-11-16 | 1994-11-16 | Process |
| PCT/GB1995/002573 WO1996015135A1 (en) | 1994-11-16 | 1995-11-02 | Process for the manufacture of n-phosphonomethylglycine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SK61297A3 true SK61297A3 (en) | 1997-11-05 |
Family
ID=10764573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK612-97A SK61297A3 (en) | 1994-11-16 | 1995-11-02 | Process for the manufacture of n-phosphonomethylglycine |
Country Status (29)
| Country | Link |
|---|---|
| US (1) | US5679843A (de) |
| EP (1) | EP0792277B1 (de) |
| JP (1) | JP3576169B2 (de) |
| KR (1) | KR100362553B1 (de) |
| CN (1) | CN1061982C (de) |
| AR (1) | AR000087A1 (de) |
| AT (1) | ATE181554T1 (de) |
| AU (1) | AU697316B2 (de) |
| BG (1) | BG101523A (de) |
| BR (1) | BR9509691A (de) |
| CA (1) | CA2203553C (de) |
| CZ (1) | CZ149097A3 (de) |
| DE (1) | DE69510466T2 (de) |
| DK (1) | DK0792277T3 (de) |
| ES (1) | ES2133819T3 (de) |
| FI (1) | FI972065A (de) |
| GB (1) | GB9423254D0 (de) |
| GR (1) | GR3030456T3 (de) |
| HU (1) | HU217301B (de) |
| IL (1) | IL115793A (de) |
| MA (1) | MA23714A1 (de) |
| MY (1) | MY112939A (de) |
| NO (1) | NO972240D0 (de) |
| NZ (1) | NZ294891A (de) |
| PL (1) | PL187068B1 (de) |
| SK (1) | SK61297A3 (de) |
| TW (1) | TW296385B (de) |
| WO (1) | WO1996015135A1 (de) |
| ZA (1) | ZA959527B (de) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9515265D0 (en) * | 1995-07-25 | 1995-09-20 | Zeneca Ltd | Chemical process |
| DE19629870A1 (de) * | 1996-07-24 | 1998-01-29 | Sueddeutsche Kalkstickstoff | Verfahren zur Herstellung von N-Phosphonomethylglycin |
| US5948937A (en) * | 1996-09-12 | 1999-09-07 | Monsanto Company | Method for producing N-phosphonomethylglycine and its salts |
| KR20000036090A (ko) * | 1996-09-12 | 2000-06-26 | 죤 에이치. 뷰센 | 엔-포스포노메틸글리신과 이의 염들의 제조방법 |
| BR9713644A (pt) * | 1996-12-30 | 2000-04-11 | Monsanto Co | Composto cianofosforosos e sua preparação. |
| CA2276166A1 (en) * | 1996-12-30 | 1998-07-09 | Monsanto Company | Method for preparing cyanophosphonate derivatives from pyrophosphate o r polyphosphate esters and cyanide |
| ES2184151T3 (es) * | 1996-12-30 | 2003-04-01 | Monsanto Technology Llc | Procedimiento para preparar derivados de cianofosfonato a partir de anhidrido fosforico y cianuro. |
| JP2001507665A (ja) * | 1996-12-30 | 2001-06-12 | モンサント・カンパニー | 新規シアノホスホネート誘導体及びこれらの調製方法 |
| JP2001507695A (ja) * | 1996-12-30 | 2001-06-12 | モンサント・カンパニー | シアノホスホネート誘導体の水素化を経由するアミノメチルホスホネート誘導体の調製方法 |
| AU725010B2 (en) * | 1996-12-30 | 2000-10-05 | Monsanto Company | Hydrogenation of mixtures of cyanophosphonates and glycine |
| JP2001507707A (ja) * | 1996-12-30 | 2001-06-12 | モンサント・カンパニー | リン酸エステルおよびシアン化物からのシアノホスホネートの調製方法 |
| US6218563B1 (en) | 1998-12-03 | 2001-04-17 | Monsanto Company | Cyanophosphonamides and method for preparation |
| EP1243657B1 (de) * | 1999-12-27 | 2007-08-29 | Asahi Kasei Kabushiki Kaisha | Verfahren zur herstellung von glycin |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221583A (en) * | 1978-12-22 | 1980-09-09 | Monsanto Company | N-Phosphonomethylglycinonitrile and certain derivatives thereof |
| PL156933B1 (pl) * | 1988-02-16 | 1992-04-30 | Politechnika Wroclawska | Sposób wytwarzania N-(1-fosfonoalkilo) glicyn, zwlaszcza N-(fosfonometylo) glicyny PL |
| CA2053362A1 (en) * | 1990-10-15 | 1992-04-16 | Druce K. Crump | Preparation of aminonitriles |
| JP2525977B2 (ja) * | 1991-10-17 | 1996-08-21 | 昭和電工株式会社 | Ｎ−アシルアミノメチルホスホン酸の製造法 |
| GB9307234D0 (en) * | 1993-04-07 | 1993-06-02 | Zeneca Ltd | Process |
-
1994
- 1994-11-16 GB GB9423254A patent/GB9423254D0/en active Pending
-
1995
- 1995-10-26 TW TW084111300A patent/TW296385B/zh not_active IP Right Cessation
- 1995-10-27 IL IL11579395A patent/IL115793A/xx not_active IP Right Cessation
- 1995-11-02 CZ CZ971490A patent/CZ149097A3/cs unknown
- 1995-11-02 NZ NZ294891A patent/NZ294891A/xx unknown
- 1995-11-02 AT AT95936013T patent/ATE181554T1/de not_active IP Right Cessation
- 1995-11-02 HU HU9702181A patent/HU217301B/hu not_active IP Right Cessation
- 1995-11-02 PL PL95321158A patent/PL187068B1/pl not_active IP Right Cessation
- 1995-11-02 EP EP95936013A patent/EP0792277B1/de not_active Expired - Lifetime
- 1995-11-02 BR BR9509691A patent/BR9509691A/pt not_active IP Right Cessation
- 1995-11-02 ES ES95936013T patent/ES2133819T3/es not_active Expired - Lifetime
- 1995-11-02 KR KR1019970703259A patent/KR100362553B1/ko not_active IP Right Cessation
- 1995-11-02 DE DE69510466T patent/DE69510466T2/de not_active Expired - Fee Related
- 1995-11-02 CN CN95196267A patent/CN1061982C/zh not_active Expired - Fee Related
- 1995-11-02 SK SK612-97A patent/SK61297A3/sk unknown
- 1995-11-02 JP JP51581396A patent/JP3576169B2/ja not_active Expired - Lifetime
- 1995-11-02 AU AU38104/95A patent/AU697316B2/en not_active Ceased
- 1995-11-02 DK DK95936013T patent/DK0792277T3/da active
- 1995-11-02 WO PCT/GB1995/002573 patent/WO1996015135A1/en active IP Right Grant
- 1995-11-02 CA CA002203553A patent/CA2203553C/en not_active Expired - Fee Related
- 1995-11-07 AR AR33414295A patent/AR000087A1/es unknown
- 1995-11-07 MA MA24059A patent/MA23714A1/fr unknown
- 1995-11-09 ZA ZA959527A patent/ZA959527B/xx unknown
- 1995-11-13 US US08/556,319 patent/US5679843A/en not_active Expired - Lifetime
- 1995-11-16 MY MYPI95003493A patent/MY112939A/en unknown
-
1997
- 1997-05-14 FI FI972065A patent/FI972065A/fi unknown
- 1997-05-15 NO NO972240A patent/NO972240D0/no unknown
- 1997-05-29 BG BG101523A patent/BG101523A/xx unknown
-
1999
- 1999-06-24 GR GR990401362T patent/GR3030456T3/el unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR0137455B1 (ko) | 4-아미노-1-하이드록시부틸리덴-1, 1-비스포스폰산 또는 이의 염의 제조방법 | |
| US5688994A (en) | Process for preparing N-phosphonomethyliminodiacetic acid | |
| US4775498A (en) | Process for preparing N,N-diacetic acid aminomethylenephosphonic acid | |
| US4724103A (en) | Process for preparing N,N-diacetic acid aminomethylenephosphonic acid | |
| SK61297A3 (en) | Process for the manufacture of n-phosphonomethylglycine | |
| CA2152479A1 (en) | Process for the manufacture of n-phosphonomethyliminodiacetic acid | |
| US4486358A (en) | Process for producing N-phosphonomethylglycine | |
| JPH0313238B2 (de) | ||
| EP1095048B1 (de) | Verfahren zur herstellung von n-phosphonomethyl iminodiessigsäure | |
| EP0297369A2 (de) | Verfahren zur Herstellung von N-Phosphonomethylglycin | |
| US5068404A (en) | Thermal dealkylation of N-alkyl N-phosphonomethylglycine | |
| KR880001831B1 (ko) | N-포스포노메틸글리신의 제조방법 | |
| JPH0244472B2 (de) | ||
| JPH0231073B2 (ja) | Okishifurabankagobutsunoseizoho | |
| US4534904A (en) | Process for producing N-phosphonomethylglycine | |
| JPS60237059A (ja) | モノアルキルヒドラジンの製法 | |
| PL156933B1 (pl) | Sposób wytwarzania N-(1-fosfonoalkilo) glicyn, zwlaszcza N-(fosfonometylo) glicyny PL | |
| EP0195738B1 (de) | Verfahren zur Herstellung von N,N-Diisopropyl-2-benzothiazolsulfonamiden | |
| JPH04360873A (ja) | ジメチロールヒダントイン化合物の製造方法 | |
| EP0816369B1 (de) | Verfahren zur Herstellung von N-Phosphonomethylglyzin | |
| EP0062119B1 (de) | Verfahren zur Herstellung von Dialkylestern von 1,3-Dithiol-2-ylidene-malonsäure | |
| HU222807B1 (hu) | Eljárás DOP előállítására és az eljárással előállított, csökkentett OPP-tartalmú DOP | |
| KR20020078360A (ko) | 4,4-비스(클로로메틸)비페닐의 제조방법 | |
| JPS6152830B2 (de) | ||
| DE3805644A1 (de) | 1-hydroxy-(omega)-(alkyl - bzw. arylphosphinico-)alkan-1,1-diphosphonsaeuren, deren salze sowie verfahren zur herstellung dieser verbindungen |