WO1997009312A1 - Processus de production de 3-(aminomethyl)-6-chloropyridines - Google Patents
Processus de production de 3-(aminomethyl)-6-chloropyridines Download PDFInfo
- Publication number
- WO1997009312A1 WO1997009312A1 PCT/JP1996/002535 JP9602535W WO9709312A1 WO 1997009312 A1 WO1997009312 A1 WO 1997009312A1 JP 9602535 W JP9602535 W JP 9602535W WO 9709312 A1 WO9709312 A1 WO 9709312A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- general formula
- pyridine
- production method
- aminomethyl
- chloride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/89—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members with hetero atoms directly attached to the ring nitrogen atom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom 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
- C07D213/61—Halogen atoms or nitro radicals
Definitions
- the present invention relates to substituted aminomethyl pyridines useful as precursors for producing important raw materials in the production of agricultural chemicals.
- R 2 represents a hydrogen atom, a lower alkyl group
- R 3 represents a hydrogen atom, a lower alkyl group, or a halogen atom
- 3- (aminomethyl) -16-cyclopyridines are pesticides
- Various production methods have been proposed because they are important raw materials for pesticide production.
- 6-chloro-1- (chloromethyl) pyridine as a raw material, the chlorine on the methyl group of this compound is converted to an amino group (EP 3912 05, ⁇ 30 2 3 89, ⁇ ⁇ 3 6 6 0 8 5, ⁇ ⁇ 3 7 6 2 7 9, JP 5 2 8 6 9 3 6) or (2) 6-chloro-1-3-cyanopyridine as precursor
- a method of reducing the cyano group to an aminomethyl group (DE 4222,152, WO9213840) is known.
- the reaction of substituting chlorine on a methyl group with an amino group in the method (1) produces a by-product such as dimer, and thus there is no industrially satisfactory method.
- the method for producing 6-chloro-1- (chloromethyl) pyridine, which is a raw material, is as follows: (1) 6-chloro- 3 _ which is produced by a method described in EP 5556683, etc.
- R 1 represents an alkyl group, an aryl group, an aralkyl group or an alkoxy group
- R 2 represents a hydrogen atom, a lower alkyl group
- R 3 represents a hydrogen atom, a lower alkyl group, or a halogen atom.
- R 1 , R 2 and R 3 will be specifically described.
- R 1 is stable during the oxidation reaction and the quaternary ammonium chloride reaction at the 6-position of the pyridine during the production of the raw material compound represented by the general formula [I], and is stable in the water treatment step in the presence of an acid according to the present invention. Anything can be used as long as the amino group is hydrolyzed.
- the alkyl group is a linear, branched, or cyclic C1-C18 alkyl group
- the aryl group is a phenyl or naphthalene group.
- fused ring type aromatic groups such as anthracene are also possible, and these are further substituted by lower alkyl groups such as methyl and ethyl, lower alkoxy groups such as methoxy and ethoxy, or halogen atoms such as fluorine and chlorine.
- the aralkyl group may be any combination of the above-mentioned alkyl group and aryl group, and the alkoxy group is exemplified by a lower alkoxy group such as methoxy, ethoxy, i-propoxy, and a benzyloxy group.
- R 2 is a hydrogen atom or a lower alkyl group such as methyl and ethyl.
- R 3 is a hydrogen atom, a lower alkyl group such as methyl or ethyl, or a halogen atom.
- the base represented by the general formula [a] include trialkylamines such as trimethylamine and triethylamine, tertiary amines such as N, N-dimethylaniline, N, N-dimethyl-4-aminoaminopyridine and the like. Examples thereof include pyridine which may be substituted with a lower alkyl group such as methyl and ethyl.
- Electrophilic reagents include chlorides such as phosgene, thionyl chloride, and sulfuryl chloride; Phosphoric acid chlorides, such as phosphorus oxychloride, phosphorus pentachloride, (getyl amide) phosphonic acid dichloride, methane sulfonic acid chloride, sulfonic acid chlorides such as toluene sulfonic acid chloride, and acetyl chloride.
- Examples include acid chlorides such as benzoic acid chloride, and chloroformates such as methyl chloroformate and isopropyl chloroformate.
- the present invention is represented by the following reaction formula.
- Step A A mixture of a compound represented by the general formula [I] and a base represented by the general formula [a] is reacted with an electrophilic reagent to form a mixture of the general formula [ ⁇ ] (wherein R 1 , R 2 and R 3 and R 'R "R"' N nonaqueous inert solvent Anmoniumu salt [III] obtained in c B step a step of producing a Anmoniumu salt represented by the same means showing a) and the chloride When treated with hydrogen, the general formula [IV]
- 6-chloropyridine 3- (Aminomethyl) -1-aminopyridine) is converted to 6-chloropyridine by hydrolyzing [IV] in an aqueous solvent in the presence of an acid such as hydrochloric acid in an aqueous solvent. 6-Chloropyridines are obtained. Further, the compound represented by the general formula [II] can be directly obtained by treating the aluminum salt represented by the general formula [ ⁇ ] in an aqueous hydrogen chloride solution. Examples of the solvent used in step A include chlorinated compounds such as methylene chloride, chloroform, carbon tetrachloride, and chlorobenzene, or trifluoroacetic acids such as acetonitrile and benzonitrile, and ethyl acetate and methyl acetate.
- the solvent used in step A include chlorinated compounds such as methylene chloride, chloroform, carbon tetrachloride, and chlorobenzene, or trifluoroacetic acids such as acetonitrile
- Inert solvents such as esters, ethers such as THF and getyl ether, ketones such as acetone and MEK, or mixed solvents thereof, or hexane, toluene, etc.
- a mixed solvent to which the above-mentioned hydrocarbon solvent is added can be used.
- the compound represented by the general formula [I] is used in an amount of 2 to 6 mol equivalent of the base represented by the general formula [a], and the electrophilic reagent is equimolar to the compound represented by the general formula [I]. Use molar equivalents.
- the reaction is carried out at ⁇ 40 ° C. to the boiling point of the solvent, preferably at ⁇ 20 ° C. to room temperature for 1 to 6 hours.
- the same non-aqueous solvent used in the hydrogen chloride treatment in the step B can be used as in the step A.
- the aqueous solvent used in the hydrolysis is water, or water and methanol, A mixed solvent with a lower alcohol such as ethanol can be used.
- the 3- (substituted aminomethyl) pyridin-1-oxo represented by the general formula [I] of the raw material can be produced from 3- (aminomethyl) pyridines [V], for example, as follows c
- One mole of the compound represented by the general formula [V] and 1 to 1.1 mol of the compound represented by the general formula [VII] or [VIII] are combined with methylene chloride, chloroform, toluene, xylene or the like.
- the reaction is carried out at ⁇ 10 ° C. to 40 ° C. in the presence of 1 to 1.5 mol of an organic base such as tritylamine in an organic solvent.
- an aqueous solution of an inorganic base such as sodium hydroxide instead of the organic base, and carry out the two-phase reaction at a temperature from room temperature to 50 ° C in the presence of a phase transfer catalyst such as a quaternary ammonium salt if necessary.
- a phase transfer catalyst such as a quaternary ammonium salt
- Step D is a step in which [VI] is oxidized to 3- (substituted aminomethyl) pyridine 1-oxide [I].
- Lower alcohols, water and acetic acid can be used as the solvent, and hydrogen peroxide and oxidizing agent can be used.
- tungstate is used as a catalyst.
- the thus-obtained compound represented by the general formula [I] can be used as a raw material in the next step of the production method of the present invention without isolation.
- reaction solution was transferred to an autoclave, hydrogen chloride gas (67.0 g) was introduced, and the mixture was stirred.
- the reaction was carried out at 50 ° C. (5 kgf / cm 2 ) for 5 hours.
- the mixture was extracted with 35% hydrochloric acid (160 ml).
- the resulting aqueous hydrochloric acid solution was heated at 90 to 95 ° C for 3.5 hours.
- a 28% aqueous sodium hydroxide solution was added to adjust the pH of the solution to 13.5.
- This solution was extracted with a black form (150 ml), and the aqueous layer was further extracted with a black form.
- the chloroform layer was combined, dried over magnesium sulfate, and the solvent was distilled off to obtain 24.8 g (yield 87%) of 3- (aminomethyl) -16-cyclopyridine.
- Table 1 shows the results obtained by performing Reference Examples 2 to 12 in the same manner.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69612543T DE69612543T2 (de) | 1995-09-08 | 1996-09-06 | Verfahren zur herstellung von 3-(aminomethyl)-6-chlorpyridinen |
US08/836,658 US5744608A (en) | 1995-09-08 | 1996-09-06 | Method for manufacturing 3-(aminomethyl)-6-chloropyridines |
EP96929543A EP0791583B1 (en) | 1995-09-08 | 1996-09-06 | Process for producing 3-(aminomethyl)-6-chloropyridines |
AT96929543T ATE200665T1 (de) | 1995-09-08 | 1996-09-06 | Verfahren zur herstellung von 3-(aminomethyl)-6- chlorpyridinen |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25711695 | 1995-09-08 | ||
JP7/257116 | 1995-09-08 | ||
JP7/321111 | 1995-11-15 | ||
JP32111195 | 1995-11-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997009312A1 true WO1997009312A1 (fr) | 1997-03-13 |
Family
ID=26543065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/002535 WO1997009312A1 (fr) | 1995-09-08 | 1996-09-06 | Processus de production de 3-(aminomethyl)-6-chloropyridines |
Country Status (5)
Country | Link |
---|---|
US (1) | US5744608A (ja) |
EP (1) | EP0791583B1 (ja) |
AT (1) | ATE200665T1 (ja) |
DE (1) | DE69612543T2 (ja) |
WO (1) | WO1997009312A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006015468A1 (de) * | 2006-03-31 | 2007-10-04 | Bayer Cropscience Ag | Substituierte Enaminocarbonylverbindungen |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02290851A (ja) * | 1989-04-07 | 1990-11-30 | Bayer Ag | 2―クロロ―5―アミノメチルーピリジンの製造方法 |
JPH05286936A (ja) * | 1992-04-06 | 1993-11-02 | Takeda Chem Ind Ltd | ホルムアミド誘導体の製造法及び新規ホルムアミド誘導体 |
JPH06279410A (ja) * | 1993-02-01 | 1994-10-04 | Koei Chem Co Ltd | 2−クロロ−5−アミノメチルピリジン類の製造方法 |
JPH07188170A (ja) * | 1993-12-24 | 1995-07-25 | Ihara Chem Ind Co Ltd | アミノメチルピリジン誘導体の製造方法及びその中間体 |
JPH0827112A (ja) * | 1994-07-04 | 1996-01-30 | Bayer Ag | N−アシル化2−クロロ−5−アミノメチルピリジン類の製造方法 |
JPH0853417A (ja) * | 1994-08-09 | 1996-02-27 | Mitsubishi Chem Corp | α位にハロゲン原子を有するアミノメチルピリジン類の製造方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4576629A (en) * | 1984-03-15 | 1986-03-18 | Union Carbide Corporation | Herbicidal thiadiazole ureas |
EP0256990A1 (de) * | 1986-08-20 | 1988-02-24 | Ciba-Geigy Ag | Pyridinio-Verbindungen |
DE3630046A1 (de) * | 1986-09-04 | 1988-03-17 | Bayer Ag | Verfahren zur herstellung von 5-chlormethylpyridinen |
US5849768A (en) * | 1987-08-01 | 1998-12-15 | Takeda Chemical Industries, Ltd. | α-unsaturated amines, their production and use |
IN170284B (ja) * | 1988-10-26 | 1992-03-07 | Takeda Chemical Industries Ltd | |
IE960441L (en) * | 1988-12-27 | 1990-06-27 | Takeda Chemical Industries Ltd | Guanidine derivatives, their production and insecticides |
GB8924280D0 (en) * | 1989-10-27 | 1989-12-13 | Shell Int Research | Butenone compounds,their preparation and their use as pesticides |
DE4016175A1 (de) * | 1990-05-19 | 1991-11-21 | Bayer Ag | Seitenkettenchlorierung von alkylierten stickstoff-heteroaromaten |
JP3031727B2 (ja) * | 1991-02-04 | 2000-04-10 | 広栄化学工業株式会社 | α位に塩素原子を有するアミノメチルピリジン類の製造方法 |
US5459495A (en) * | 1992-05-14 | 1995-10-17 | In Focus Systems, Inc. | Gray level addressing for LCDs |
US5100826A (en) * | 1991-05-03 | 1992-03-31 | Micron Technology, Inc. | Process for manufacturing ultra-dense dynamic random access memories using partially-disposable dielectric filler strips between wordlines |
US5502194A (en) * | 1992-02-19 | 1996-03-26 | Bayer Aktiengesellschaft | Process for the preparation of 2-halogeno-pyridine derivatives |
DE4212595A1 (de) * | 1992-02-19 | 1993-08-26 | Bayer Ag | Verfahren zur herstellung von 2-chlor-5-methyl-pyridin |
DE4204919A1 (de) * | 1992-02-19 | 1993-08-26 | Bayer Ag | Verfahren zur herstellung von 2-chlor-5-alkylaminomethyl-pyridinen |
JP3123815B2 (ja) * | 1992-05-19 | 2001-01-15 | 広栄化学工業株式会社 | 2−クロロ−5−クロロメチルピリジン及び/又は2−クロロ−5−ジクロロメチルピリジンの製造方法 |
DE4222152A1 (de) * | 1992-07-06 | 1994-01-13 | Bayer Ag | Verfahren zur Herstellung von 2-Chlor-5-aminomethyl-pyridin |
DE69409551T2 (de) * | 1993-02-01 | 1998-10-01 | Koei Chemical Co | Verfahren zur Herstellung von 2-Chloro-5-aminomethylpyridinen |
-
1996
- 1996-09-06 DE DE69612543T patent/DE69612543T2/de not_active Expired - Lifetime
- 1996-09-06 WO PCT/JP1996/002535 patent/WO1997009312A1/ja active IP Right Grant
- 1996-09-06 EP EP96929543A patent/EP0791583B1/en not_active Expired - Lifetime
- 1996-09-06 AT AT96929543T patent/ATE200665T1/de not_active IP Right Cessation
- 1996-09-06 US US08/836,658 patent/US5744608A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02290851A (ja) * | 1989-04-07 | 1990-11-30 | Bayer Ag | 2―クロロ―5―アミノメチルーピリジンの製造方法 |
JPH05286936A (ja) * | 1992-04-06 | 1993-11-02 | Takeda Chem Ind Ltd | ホルムアミド誘導体の製造法及び新規ホルムアミド誘導体 |
JPH06279410A (ja) * | 1993-02-01 | 1994-10-04 | Koei Chem Co Ltd | 2−クロロ−5−アミノメチルピリジン類の製造方法 |
JPH07188170A (ja) * | 1993-12-24 | 1995-07-25 | Ihara Chem Ind Co Ltd | アミノメチルピリジン誘導体の製造方法及びその中間体 |
JPH0827112A (ja) * | 1994-07-04 | 1996-01-30 | Bayer Ag | N−アシル化2−クロロ−5−アミノメチルピリジン類の製造方法 |
JPH0853417A (ja) * | 1994-08-09 | 1996-02-27 | Mitsubishi Chem Corp | α位にハロゲン原子を有するアミノメチルピリジン類の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0791583B1 (en) | 2001-04-18 |
DE69612543T2 (de) | 2001-08-23 |
EP0791583A1 (en) | 1997-08-27 |
EP0791583A4 (en) | 1999-01-27 |
US5744608A (en) | 1998-04-28 |
ATE200665T1 (de) | 2001-05-15 |
DE69612543D1 (de) | 2001-05-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11465970B2 (en) | Method for synthesis of Roxadustat and intermediate compounds thereof | |
JPS63139182A (ja) | チアゾリジンジオン誘導体の製造法 | |
JP2004524358A (ja) | フェニル酢酸誘導体の製造方法 | |
TWI695824B (zh) | 製備3-氯-2-乙烯基苯基磺酸酯之方法 | |
JP4182307B2 (ja) | アダマンタノール類の製造方法 | |
JP2865797B2 (ja) | 2―クロロ―5―クロロメチル―ピリジンの製造方法及び新規中間体 | |
WO1997009312A1 (fr) | Processus de production de 3-(aminomethyl)-6-chloropyridines | |
KR100517007B1 (ko) | 니코틴산의 제조방법 | |
US20060100440A1 (en) | Process for the preparation of isonicotinic acid derivatives | |
JP2003335735A (ja) | パーフルオロイソプロピルアニリン類の製造方法 | |
JP3968136B2 (ja) | 3−(置換アミノメチル)−6−クロロピリジンの製造方法 | |
US6489483B1 (en) | Process for the production of 2-pyridylpyridine derivatives | |
WO2006115171A1 (ja) | ニコチン酸誘導体又はその塩の製造方法 | |
JPH07206821A (ja) | α位に塩素原子を有するピリジン類の製造方法 | |
JP2006176531A (ja) | 光学活性ベンズイミダゾール誘導体の光学異性体 | |
JP3937416B2 (ja) | 3−(アミノメチル)−6−クロロピリジン類の製造方法 | |
JPH07278141A (ja) | 光学活性ベンズイミダゾール誘導体の製造法および中間体 | |
JP4803037B2 (ja) | 含フッ素2−クロロアクリル酸エステルの製法 | |
JP3895786B2 (ja) | クロロピリジニウムクロリド類及びその製造法 | |
JP2001316324A (ja) | アリールカルボン酸化合物およびアリールアルデヒド化合物の製造方法 | |
JPH02218666A (ja) | 2―クロロ―5―クロロメチルピリジンの製造方法 | |
WO1998011071A1 (fr) | Procede pour la preparation de derives d'halogenopyridine | |
JP4655419B2 (ja) | 3−アルコキシメチルオキセタン化合物の製法 | |
JP3007330B2 (ja) | 3−ジクロロメチルピリジンの製造方法 | |
JP3717343B2 (ja) | 光学活性フリーデル−クラフト反応生成物類の製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 08836658 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1996929543 Country of ref document: EP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1996929543 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 1996929543 Country of ref document: EP |