EP1204647A1 - Verfahren zur herstellung von 4,6-dichlorpyrimidin mit phosgen - Google Patents
Verfahren zur herstellung von 4,6-dichlorpyrimidin mit phosgenInfo
- Publication number
- EP1204647A1 EP1204647A1 EP00951392A EP00951392A EP1204647A1 EP 1204647 A1 EP1204647 A1 EP 1204647A1 EP 00951392 A EP00951392 A EP 00951392A EP 00951392 A EP00951392 A EP 00951392A EP 1204647 A1 EP1204647 A1 EP 1204647A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chloro
- phosgene
- methoxypyrimidine
- nitrogen
- process according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 20
- XJPZKYIHCLDXST-UHFFFAOYSA-N 4,6-dichloropyrimidine Chemical compound ClC1=CC(Cl)=NC=N1 XJPZKYIHCLDXST-UHFFFAOYSA-N 0.000 title abstract description 14
- 238000004519 manufacturing process Methods 0.000 title description 3
- KLJGSQVYUGQOAW-UHFFFAOYSA-N 4-chloro-6-methoxypyrimidine Chemical compound COC1=CC(Cl)=NC=N1 KLJGSQVYUGQOAW-UHFFFAOYSA-N 0.000 claims abstract description 18
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012320 chlorinating reagent Substances 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 6
- 235000013877 carbamide Nutrition 0.000 claims description 4
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 150000001412 amines Chemical class 0.000 claims description 3
- 239000003849 aromatic solvent Substances 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 125000001072 heteroaryl group Chemical group 0.000 claims description 2
- 125000005842 heteroatom Chemical group 0.000 claims description 2
- 150000002825 nitriles Chemical class 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 229920000570 polyether Polymers 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 150000003672 ureas Chemical class 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 24
- 239000008096 xylene Substances 0.000 description 12
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 11
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 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
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- AXFABVAPHSWFMD-UHFFFAOYSA-N 6-chloro-1h-pyrimidin-4-one Chemical compound OC1=CC(Cl)=NC=N1 AXFABVAPHSWFMD-UHFFFAOYSA-N 0.000 description 2
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- -1 cyclic ureas Chemical class 0.000 description 2
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- GGSUCNLOZRCGPQ-UHFFFAOYSA-N diethylaniline Chemical compound CCN(CC)C1=CC=CC=C1 GGSUCNLOZRCGPQ-UHFFFAOYSA-N 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- UAEPNZWRGJTJPN-UHFFFAOYSA-N methylcyclohexane Chemical compound CC1CCCCC1 UAEPNZWRGJTJPN-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005191 phase separation Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- GETTZEONDQJALK-UHFFFAOYSA-N (trifluoromethyl)benzene Chemical class FC(F)(F)C1=CC=CC=C1 GETTZEONDQJALK-UHFFFAOYSA-N 0.000 description 1
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- SGUVLZREKBPKCE-UHFFFAOYSA-N 1,5-diazabicyclo[4.3.0]-non-5-ene Chemical compound C1CCN=C2CCCN21 SGUVLZREKBPKCE-UHFFFAOYSA-N 0.000 description 1
- XQQUKAGHLDAJGO-UHFFFAOYSA-N 1-(2,6-dihydroxy-4-methoxyphenyl)hexan-1-one Chemical compound CCCCCC(=O)C1=C(O)C=C(OC)C=C1O XQQUKAGHLDAJGO-UHFFFAOYSA-N 0.000 description 1
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 1
- DUFGYCAXVIUXIP-UHFFFAOYSA-N 4,6-dihydroxypyrimidine Chemical compound OC1=CC(O)=NC=N1 DUFGYCAXVIUXIP-UHFFFAOYSA-N 0.000 description 1
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 101700012268 Holin Proteins 0.000 description 1
- NHTMVDHEPJAVLT-UHFFFAOYSA-N Isooctane Chemical compound CC(C)CC(C)(C)C NHTMVDHEPJAVLT-UHFFFAOYSA-N 0.000 description 1
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000008422 chlorobenzenes Chemical class 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- JVSWJIKNEAIKJW-UHFFFAOYSA-N dimethyl-hexane Natural products CCCCCC(C)C JVSWJIKNEAIKJW-UHFFFAOYSA-N 0.000 description 1
- GUVUOGQBMYCBQP-UHFFFAOYSA-N dmpu Chemical compound CN1CCCN(C)C1=O GUVUOGQBMYCBQP-UHFFFAOYSA-N 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- GYNNXHKOJHMOHS-UHFFFAOYSA-N methyl-cycloheptane Natural products CC1CCCCCC1 GYNNXHKOJHMOHS-UHFFFAOYSA-N 0.000 description 1
- QULYNCCPRWKEMF-UHFFFAOYSA-N parachlorobenzotrifluoride Chemical compound FC(F)(F)C1=CC=C(Cl)C=C1 QULYNCCPRWKEMF-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
- C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having 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
- C07D237/12—Halogen atoms or nitro radicals
Definitions
- the present invention relates to a process for the preparation of 4,6-dichloropyrimidine from 4-chloro-6-methoxypyrimidine.
- 4,6-dichloropyrimidine is a valuable one
- the process according to the invention can be carried out in a solvent (for details see below) or in the melt.
- the execution in one is preferred
- nitrogen-containing auxiliaries are nitrogen-containing bases, for example amines of the formula R * R 2 R 3 N (in which R 1 , R 2 and R 3 independently of one another are each for C 1 -C 10 alkyl, C 1 -C 4 aryl, C 5 -C9 heteroaryl with 1 to 3
- Heteroatoms from the group N, O and S or C 6 -C 10 aryl -CC-C 6 alkyl mean can) or unsaturated or saturated cyclic amines having 1 to 2 nitrogen atoms and 5 to 11 carbon atoms, where the cyclic amines can optionally be substituted 1 to 3 times by C ⁇ -C ⁇ o-alkyl.
- Examples of such amines are: triethylamine, N, N-diethylaniline, N, N-dimethylaniline, diisopropylethylamine, 4- (N, N-dimethylamino) pyridine (DMAP), with C 1 -C 2 -alkylmono- or -dialkylated pyridines , Mo holin, imidazole, triazole, 1,5-diazabicyclo [4.3.0] non-5-ene (DBN), l, 8-diazabicyclo [5.4.0] undec-7-ene (DBU) and piperidine.
- Amides and ureas which can also be used as solvents can also be used as nitrogen-containing auxiliaries. Examples are: N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrrolidone,
- Tetramethyl urea and cyclic ureas such as 1,3-dimethyimidazolidin-2-one (DMEU) and 1,3-dimethyltetrahydro-2 (1H) pyrimidinone (DMPH).
- DMEU 1,3-dimethyimidazolidin-2-one
- DMPH 1,3-dimethyltetrahydro-2 (1H) pyrimidinone
- the amount of nitrogen-containing auxiliaries can be varied within a wide range. Smaller amounts, for example those of less than 1 mole per mole of 4-chloro-6-methoxypyrimidine, can be used, for example, if one wants to use the nitrogen-containing auxiliary as a catalyst. Higher amounts, for example those of more than 1.5 moles per mole of 4-chloro-6-methoxypyrimidine, can be used if one wishes to use the nitrogen-containing auxiliary both as a catalyst and as a solvent.
- the amount of nitrogen-containing auxiliary can be between 0.001 and 25 mol, preferably between 0.01 and 15
- Mol are based on 4-chloro-6-methoxypyrimidine. Amounts in the range from 0.01 to 0.5 mole per mole of 4-chloro-6-methoxypyrimidine are particularly preferred when the nitrogen-containing auxiliary is used as a catalyst.
- Solvents are basically those that are not suitable for the reaction to be carried out influence negatively. Examples are aliphatic solvents such as alkanes, cycloalkanes and haloalkanes, aromatic solvents such as benzene, xylenes, toluene, chlorobenzenes, benzotrifluorides, p-chlorobenzotrifluoride and anisole, where the aliphatic and aromatic solvents can optionally be further substituted, nitriles such as acetonitrile and benzonitrile, N- containing solvents such as
- the method according to the invention can e.g. at temperatures in the range from 0 to 200 ° C., preferably from 20 to 150 ° C., particularly preferably from 40 to 120 ° C.
- the pressure is not critical.
- Working at normal pressure is particularly preferred.
- the process according to the invention can be carried out in various embodiments, for example batchwise, batchwise in batches, partially continuously or continuously.
- a possible procedure is as follows: 4-chloro-6-methoxypyrimidine is initially introduced with a nitrogenous auxiliary, optionally together with a solvent, and gaseous phosgene is introduced.
- Another variant is to add the phosgene in liquid form or dissolved in a solvent.
- the entire phosgene can be added directly at the start of the reaction or dosed over a certain period of time.
- the reaction mixture present after the reaction can be worked up, for example, by first removing excess phosgene from the batch by blowing and / or distilling and distilling the remaining reaction mixture. If water-soluble auxiliaries were used, it is expedient to first add water to the reaction mixture and to distill or recrystallize the remaining product after the auxiliaries have been washed out and after the solvent has been distilled off.
- a further, generally advantageous variant consists in working up by extraction.
- nitrogenous auxiliary in the simplest case N, N-dimethylformamide as nitrogenous auxiliary and xylene as solvent
- the reaction mixture separates into two phases.
- the xylene phase containing 4,6-dichloropyrimidine can then be separated off and the N, N-dimethylformamide phase can be extracted one or more times with xylene.
- the combined xylene phases can then be distilled.
- reaction according to the invention can also be carried out only in the presence of a nitrogen-containing auxiliary and then the reaction mixture formed can be extracted with a suitable solvent, for example aliphatic or aromatic hydrocarbons such as hexane, isooctane, methylcyclohexane, toluene, xylene, decalin, tetralin or hydrocarbon mixtures.
- a suitable solvent for example aliphatic or aromatic hydrocarbons such as hexane, isooctane, methylcyclohexane, toluene, xylene, decalin, tetralin or hydrocarbon mixtures.
- the process according to the invention allows the preparation of 4,6-dichloropyrimidine in a simple manner and in good yields and without the use of phosphorus-containing chlorinating agents.
- HPLC contents were 15.57% of 4,6-dichloropyrimidine in the xylene phase and 5.38% in the N, N-dimethylformamide phase. This corresponds to yields of 63.45%
- the upper phase contained 0.22% 4-chloro-6-hydroxypyrimidine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19935322A DE19935322A1 (de) | 1999-07-28 | 1999-07-28 | Verfahren zur Herstellung von 4,6-Dichlorpyrimidin mit Phosgen |
| DE19935322 | 1999-07-28 | ||
| PCT/EP2000/006805 WO2001009105A1 (de) | 1999-07-28 | 2000-07-17 | Verfahren zur herstellung von 4,6-dichlorpyrimidin mit phosgen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1204647A1 true EP1204647A1 (de) | 2002-05-15 |
Family
ID=7916269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00951392A Withdrawn EP1204647A1 (de) | 1999-07-28 | 2000-07-17 | Verfahren zur herstellung von 4,6-dichlorpyrimidin mit phosgen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6441171B1 (de) |
| EP (1) | EP1204647A1 (de) |
| JP (1) | JP2003506361A (de) |
| AU (1) | AU6434900A (de) |
| CA (1) | CA2381608A1 (de) |
| DE (1) | DE19935322A1 (de) |
| WO (1) | WO2001009105A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020042514A1 (en) * | 2000-06-26 | 2002-04-11 | Doyle Timothy John | Synthesis of chlorinated pyrimidines |
| US6982331B2 (en) * | 2001-06-08 | 2006-01-03 | Syngenta Crop Protection, Inc. | Synthesis of chlorinated pyrimidines |
| US6753367B2 (en) * | 2001-08-20 | 2004-06-22 | General Electric Company | Flame retardant polycarbonate compositions with improved weathering performance containing cyanoacrylic esters |
| CN106053691A (zh) * | 2016-07-19 | 2016-10-26 | 安徽广信农化股份有限公司 | 一种测定4,6‑二氯嘧啶含量的方法 |
| CN119912396A (zh) * | 2025-01-20 | 2025-05-02 | 上虞颖泰精细化工有限公司 | 一种4,6-二氯嘧啶的制备方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9408270D0 (en) * | 1994-04-26 | 1994-06-15 | Zeneca Ltd | Chemical process |
| DE4429466A1 (de) | 1994-08-19 | 1996-02-22 | Bayer Ag | Verfahren zur Herstellung von Polychlorpyrimidinen |
| CN1137099C (zh) | 1995-01-30 | 2004-02-04 | 曾尼卡有限公司 | 4,6-二氯嘧啶的制法 |
| AT402818B (de) | 1995-06-02 | 1997-09-25 | Chemie Linz Gmbh | Verfahren zur herstellung von reinem 4,6-dichlorpyrimidin |
| DE19531299A1 (de) | 1995-08-25 | 1997-02-27 | Bayer Ag | Verfahren zur Herstellung von 4,6-Dichlorpyrimidinen |
| GB9709810D0 (en) | 1997-05-14 | 1997-07-09 | Zeneca Ltd | Chemical process |
-
1999
- 1999-07-28 DE DE19935322A patent/DE19935322A1/de not_active Withdrawn
-
2000
- 2000-07-17 CA CA002381608A patent/CA2381608A1/en not_active Abandoned
- 2000-07-17 EP EP00951392A patent/EP1204647A1/de not_active Withdrawn
- 2000-07-17 AU AU64349/00A patent/AU6434900A/en not_active Abandoned
- 2000-07-17 JP JP2001514308A patent/JP2003506361A/ja active Pending
- 2000-07-17 US US10/048,087 patent/US6441171B1/en not_active Expired - Fee Related
- 2000-07-17 WO PCT/EP2000/006805 patent/WO2001009105A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0109105A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001009105A1 (de) | 2001-02-08 |
| JP2003506361A (ja) | 2003-02-18 |
| AU6434900A (en) | 2001-02-19 |
| US6441171B1 (en) | 2002-08-27 |
| DE19935322A1 (de) | 2001-02-01 |
| CA2381608A1 (en) | 2001-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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