DD263988A5 - Verfahren zur herstellung von 2-chlor-5-chlormethylthiazol - Google Patents
Verfahren zur herstellung von 2-chlor-5-chlormethylthiazol Download PDFInfo
- Publication number
- DD263988A5 DD263988A5 DD87306978A DD30697887A DD263988A5 DD 263988 A5 DD263988 A5 DD 263988A5 DD 87306978 A DD87306978 A DD 87306978A DD 30697887 A DD30697887 A DD 30697887A DD 263988 A5 DD263988 A5 DD 263988A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- chloro
- chlorine
- chloromethylthiazole
- reaction
- preparation
- Prior art date
Links
- VRMUIVKEHJSADG-UHFFFAOYSA-N 2-chloro-5-(chloromethyl)-1,3-thiazole Chemical compound ClCC1=CN=C(Cl)S1 VRMUIVKEHJSADG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- ZOJBYZNEUISWFT-UHFFFAOYSA-N allyl isothiocyanate Chemical compound C=CCN=C=S ZOJBYZNEUISWFT-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 235000016720 allyl isothiocyanate Nutrition 0.000 claims abstract description 10
- 239000000460 chlorine Substances 0.000 claims description 45
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 32
- 229910052801 chlorine Inorganic materials 0.000 claims description 32
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 25
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 9
- 239000003085 diluting agent Substances 0.000 claims description 8
- 239000012320 chlorinating reagent Substances 0.000 claims description 3
- 239000003701 inert diluent Substances 0.000 claims description 3
- 229960001701 chloroform Drugs 0.000 claims 1
- -1 allyl mustard Chemical compound 0.000 abstract description 10
- 239000011541 reaction mixture Substances 0.000 abstract description 9
- 150000001875 compounds Chemical class 0.000 abstract description 8
- 241000219198 Brassica Species 0.000 abstract description 7
- 235000003351 Brassica cretica Nutrition 0.000 abstract description 7
- 235000003343 Brassica rupestris Nutrition 0.000 abstract description 7
- 235000010460 mustard Nutrition 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract 2
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 abstract 1
- 101150065749 Churc1 gene Proteins 0.000 abstract 1
- 102100038239 Protein Churchill Human genes 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 18
- 238000010992 reflux Methods 0.000 description 9
- 238000005660 chlorination reaction Methods 0.000 description 8
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 150000002540 isothiocyanates Chemical class 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000004587 chromatography analysis Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 235000019253 formic acid Nutrition 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000001577 simple distillation Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- NHRPDSWALNDCIN-UHFFFAOYSA-N 5-(chloromethyl)-2-methyl-1,3-thiazole Chemical compound CC1=NC=C(CCl)S1 NHRPDSWALNDCIN-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 239000012043 crude product Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000004508 fractional distillation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- PFBUOGLTNALCPX-UHFFFAOYSA-N (2-chloro-1-oxopropan-2-yl) acetate Chemical compound CC(=O)OC(C)(Cl)C=O PFBUOGLTNALCPX-UHFFFAOYSA-N 0.000 description 1
- WKBQQWDVVHGWDB-UHFFFAOYSA-N 1,3-thiazol-5-ylmethanol Chemical compound OCC1=CN=CS1 WKBQQWDVVHGWDB-UHFFFAOYSA-N 0.000 description 1
- ZHAKAIBZKYHXJS-UHFFFAOYSA-N 2-(chloromethyl)-1,3-thiazole Chemical compound ClCC1=NC=CS1 ZHAKAIBZKYHXJS-UHFFFAOYSA-N 0.000 description 1
- VZWOXDYRBDIHMA-UHFFFAOYSA-N 2-methyl-1,3-thiazole Chemical compound CC1=NC=CS1 VZWOXDYRBDIHMA-UHFFFAOYSA-N 0.000 description 1
- YNWQHHGSQCQVQD-UHFFFAOYSA-N 5-(chloromethyl)-1,3-thiazol-2-amine Chemical compound NC1=NC=C(CCl)S1 YNWQHHGSQCQVQD-UHFFFAOYSA-N 0.000 description 1
- RLAROPIDCNCRNR-UHFFFAOYSA-N Cl.Cl.[C-]#N Chemical class Cl.Cl.[C-]#N RLAROPIDCNCRNR-UHFFFAOYSA-N 0.000 description 1
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000013375 chromatographic separation Methods 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- CIPMPQGRFNDLAP-UHFFFAOYSA-N ethyl 1,3-thiazole-5-carboxylate Chemical compound CCOC(=O)C1=CN=CS1 CIPMPQGRFNDLAP-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000008164 mustard oil Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- BNIXVQGCZULYKV-UHFFFAOYSA-N pentachloroethane Chemical compound ClC(Cl)C(Cl)(Cl)Cl BNIXVQGCZULYKV-UHFFFAOYSA-N 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229950011008 tetrachloroethylene Drugs 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- YUKQRDCYNOVPGJ-UHFFFAOYSA-N thioacetamide Chemical compound CC(N)=S YUKQRDCYNOVPGJ-UHFFFAOYSA-N 0.000 description 1
- DLFVBJFMPXGRIB-UHFFFAOYSA-N thioacetamide Natural products CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/02—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
- C07D277/20—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D277/32—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Thiazole And Isothizaole Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863631538 DE3631538A1 (de) | 1986-09-17 | 1986-09-17 | Verfahren zur herstellung von 2-chlor-5-chlormethylthiazol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD263988A5 true DD263988A5 (de) | 1989-01-18 |
Family
ID=6309717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD87306978A DD263988A5 (de) | 1986-09-17 | 1987-09-15 | Verfahren zur herstellung von 2-chlor-5-chlormethylthiazol |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4748243A (fr) |
| EP (1) | EP0260560B1 (fr) |
| JP (1) | JPH07116167B2 (fr) |
| KR (1) | KR940011458B1 (fr) |
| CA (1) | CA1306463C (fr) |
| DD (1) | DD263988A5 (fr) |
| DE (2) | DE3631538A1 (fr) |
| HU (1) | HU201537B (fr) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180833A (en) * | 1990-03-16 | 1993-01-19 | Takeda Chemical Industries, Ltd. | Process for the preparation of chlorothiazole derivatives |
| IE911168A1 (en) * | 1990-04-13 | 1991-10-23 | Takeda Chemical Industries Ltd | Novel intermediates for preparing guanidine derivatives,¹their preparation and use |
| PT793659E (pt) * | 1994-11-22 | 2001-07-31 | Abbott Lab | Processo para a preparacao fr 5-hidroximetiltiazolo |
| AU7084196A (en) | 1995-09-11 | 1997-04-01 | Novartis Ag | Process for preparing a 2-chloro-5-chloromethyl-thiazole compound |
| GB9518824D0 (en) * | 1995-09-14 | 1995-11-15 | Fine Organics Ltd | Preparation of substituted thiazoles |
| GB2305172B (en) * | 1995-09-14 | 1998-11-18 | Fine Organics Ltd | Preparation of substituted thiazoles |
| EP0775700B1 (fr) * | 1995-11-22 | 2000-03-22 | Kureha Chemical Industry Co., Ltd. | Procédé de remplacement d'un groupe amine primaire par un atome de chlore et utilisation de ce procédé pour la préparation de 2-chloro-5-chlorométhyl-thiazole |
| DE19548417A1 (de) * | 1995-12-22 | 1997-06-26 | Bayer Ag | Verfahren zur Herstellung von 2-Chlor-5-chlormethylthiazol |
| IN182219B (fr) * | 1996-02-21 | 1999-02-06 | Kuraray Co | |
| JP2001508452A (ja) * | 1997-01-22 | 2001-06-26 | ノバルティス アクチェンゲゼルシャフト | チアゾール誘導体の製造方法 |
| WO1998045279A1 (fr) * | 1997-04-07 | 1998-10-15 | Reilly Industries, Inc. | Preparation de thiazoles utilisant des 1,3-dihalopropenes |
| US5959118A (en) * | 1997-08-29 | 1999-09-28 | Abbott Laboratories | Process for the preparation of 5-hydroxymethylthiazoles |
| DE19908447A1 (de) | 1999-02-26 | 2000-08-31 | Bayer Ag | Verfahren zur Herstellung von 2-Chlor-5-chlormethylthiazol |
| US6265553B1 (en) * | 1999-08-10 | 2001-07-24 | Syngenta Crop Protection, Inc. | Intermediate thiazoles and process for the preparation of 2-chloro-5-chloromethyl-thiazole |
| AT409760B (de) * | 1999-11-15 | 2002-11-25 | Dsm Fine Chem Austria Gmbh | Verfahren zur herstellung von 2-chlor-5-chlormethyl-1,3-thiazol |
| AT408756B (de) * | 2000-05-23 | 2002-03-25 | Dsm Fine Chem Austria Gmbh | Verfahren zur herstellung von 2-chlor-5-chlormethyl-1,3-thiazol |
| EP1311495B1 (fr) | 2000-08-23 | 2010-11-10 | Syngenta Participations AG | Procede catalytique de preparation de derives de thiazole |
| US6407251B1 (en) * | 2000-12-28 | 2002-06-18 | Takeda Chemical Industries, Ltd. | Process for preparing 2-chloro-5-chloromethylthiazole |
| EP1728787B1 (fr) * | 2004-03-22 | 2011-01-26 | Toyo Boseki Kabushiki Kaisha | Procede de purification de 2-chloro-5-chloromethyle -1,3-thiazole |
| DE102006015467A1 (de) | 2006-03-31 | 2007-10-04 | Bayer Cropscience Ag | Substituierte Enaminocarbonylverbindungen |
| DE102006033572A1 (de) | 2006-07-20 | 2008-01-24 | Bayer Cropscience Ag | N'-Cyano-N-halogenalkyl-imidamid Derivate |
| EP2039678A1 (fr) * | 2007-09-18 | 2009-03-25 | Bayer CropScience AG | Procédé de fabrication de 4-aminobut-2-énoïque |
| EP2107058A1 (fr) | 2008-03-31 | 2009-10-07 | Bayer CropScience AG | Composés d'énaminothiocarbonyle substituées |
| EP2264008A1 (fr) | 2009-06-18 | 2010-12-22 | Bayer CropScience AG | Composés énaminocarbonyle substitués |
| DK2638010T3 (en) | 2010-11-12 | 2015-04-13 | Bayer Ip Gmbh | PROCEDURE FOR PREPARING 2,2-DIFLUORETHYLAMINE DERIVATIVES FROM N- (2,2-DIFLUORETHYL) PROP-2-EN-1-AMINE |
| CN103755661B (zh) * | 2014-02-08 | 2016-09-21 | 山东省农药科学研究院 | 一种2-氯-5-氯甲基噻唑的分离精制方法 |
| CN106749086B (zh) * | 2016-12-27 | 2019-05-24 | 江苏振方生物化学有限公司 | 一种农药中间体2-氯-5-氯甲基噻唑的制备方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4013674A (en) * | 1974-12-12 | 1977-03-22 | Bayer Aktiengesellschaft | N-(1,2,2,2-tetrachloroethyl)-formimide-chloride for synthesizing trichlorothiazole |
| JPS545972A (en) * | 1977-06-13 | 1979-01-17 | Nissan Chem Ind Ltd | Thiazolecarbameta compunds and herbicides containing the same as active constituents |
| DE3681465D1 (fr) * | 1985-02-04 | 1991-10-24 | Nihon Bayer Agrochem K.K., Tokio/Tokyo, Jp |
-
1986
- 1986-09-17 DE DE19863631538 patent/DE3631538A1/de not_active Withdrawn
-
1987
- 1987-08-31 US US07/091,577 patent/US4748243A/en not_active Expired - Lifetime
- 1987-09-07 EP EP87113029A patent/EP0260560B1/fr not_active Expired - Lifetime
- 1987-09-07 DE DE8787113029T patent/DE3762745D1/de not_active Expired - Lifetime
- 1987-09-15 CA CA000546851A patent/CA1306463C/fr not_active Expired - Lifetime
- 1987-09-15 DD DD87306978A patent/DD263988A5/de not_active IP Right Cessation
- 1987-09-16 KR KR1019870010255A patent/KR940011458B1/ko not_active IP Right Cessation
- 1987-09-16 JP JP62229911A patent/JPH07116167B2/ja not_active Expired - Fee Related
- 1987-09-17 HU HU874134A patent/HU201537B/hu not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0260560B1 (fr) | 1990-05-16 |
| EP0260560A1 (fr) | 1988-03-23 |
| CA1306463C (fr) | 1992-08-18 |
| JPH07116167B2 (ja) | 1995-12-13 |
| DE3631538A1 (de) | 1988-03-24 |
| KR940011458B1 (ko) | 1994-12-15 |
| HU201537B (en) | 1990-11-28 |
| KR880003927A (ko) | 1988-06-01 |
| DE3762745D1 (de) | 1990-06-21 |
| JPS6383079A (ja) | 1988-04-13 |
| US4748243A (en) | 1988-05-31 |
| HUT48225A (en) | 1989-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0260560B1 (fr) | Procédé de préparation de chloro-2-chlorométhyl-5-thiazol | |
| EP0040356B1 (fr) | Procédé de préparation de cyanure de triméthylsilyle | |
| EP0132733B1 (fr) | Fluorures d'acide fluoropivalique et procédé de leur préparation | |
| EP0003796A1 (fr) | Diphényl-imidazolyl-méthanes substitués, leur procédé de préparation et médicaments les contenant | |
| EP0124002B1 (fr) | Procédé pour la préparation de composés aromatiques qui contiennent des chaînes latérales perfluorées liées par un atome hétérogène | |
| DE2708190A1 (de) | M-brom-benzotrifluoride | |
| EP0439745B1 (fr) | Procédé de préparation de chloro-2-méthyl-5-pyridine | |
| EP0546418B1 (fr) | Procédé pour la préparation de chloro-2 pyridines substituées en position 5 | |
| EP0087701B1 (fr) | Procédé de préparation de 2-chlorobenzoxazols | |
| EP0192148B1 (fr) | Dérivés du 2,4-dichlorothiazole et procédé pour leur préparation | |
| DE3507960A1 (de) | Herstellung von 2-chlor-4-fluorphenol aus 4-fluorphenol | |
| DE1292664B (de) | 1, 2, 3, 5, 6-Pentathiacycloheptan, Verfahren zu dessen Herstellung und Verwendung | |
| EP0692479B1 (fr) | 1,2,3-Oxythiazin-4(3F)-one-2,2-dioxydes, procédé pour leur préparation et leur utilisation comme agents de fluoration électrophiles | |
| CH494721A (de) | Verfahren zur Gewinnung von Heptafluorisopropyl-2'-jodtetrafluoräthyläther | |
| EP0794183B1 (fr) | (2,3-Dihydrobenzofuranyl)-acétonitrile | |
| DE2454326C2 (de) | 4,5-Dichlor-2-(dichlormethylen)-2H-imidazol und ein Verfahren zu seiner Herstellung | |
| EP0132734B1 (fr) | Isocyanates de néopentyle et leur préparation | |
| DE19547075A1 (de) | Verbessertes Verfahren zur Herstellung von 5-Formylthiazol | |
| DE3025910A1 (de) | Verfahren zur herstellung von 2,6-dichlorbenzthiazol | |
| EP0061588A1 (fr) | Procédé pour la chloruration d'amides cycliques et d'amides vinylogues cycliques | |
| EP0173153B1 (fr) | Composés hétérocycliques benzocondensés et fluorés, procédé pour leur préparation et leur utilisation | |
| EP0144806B1 (fr) | Procédé pour la préparation de diméthylsilyldicyanide | |
| EP0347692B1 (fr) | Procédé de préparation de benzaldéhydes fluoro-substitués | |
| EP0071791B1 (fr) | Halogénures-trichlorométhylthiobenzyle et procédé pour préparer des halogénures méta- ou para-trichlorméthylthiobenzyle | |
| EP0462452A1 (fr) | Polycyanopyrimidines et procédé pour leur préparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENJ | Ceased due to non-payment of renewal fee |