IL97077A - תהליך להכנת תרכובת פעילה אופטית r אננציומר ])פירידינילאוקסי( פנאוקסי[פרופיונאט - Google Patents
תהליך להכנת תרכובת פעילה אופטית r אננציומר ])פירידינילאוקסי( פנאוקסי[פרופיונאטInfo
- Publication number
- IL97077A IL97077A IL9707791A IL9707791A IL97077A IL 97077 A IL97077 A IL 97077A IL 9707791 A IL9707791 A IL 9707791A IL 9707791 A IL9707791 A IL 9707791A IL 97077 A IL97077 A IL 97077A
- Authority
- IL
- Israel
- Prior art keywords
- phenoxy
- propionate
- ester
- hydroxyphenoxy
- preparation
- Prior art date
Links
- -1 [(pyridinyloxy) phenoxy] propionate compound Chemical class 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 32
- 238000002360 preparation method Methods 0.000 title claims description 13
- 239000002585 base Substances 0.000 claims description 28
- MTAODLNXWYIKSO-UHFFFAOYSA-N 2-fluoropyridine Chemical compound FC1=CC=CC=N1 MTAODLNXWYIKSO-UHFFFAOYSA-N 0.000 claims description 16
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 14
- 239000003444 phase transfer catalyst Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 7
- 235000015320 potassium carbonate Nutrition 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims description 4
- 150000008041 alkali metal carbonates Chemical class 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 150000003242 quaternary ammonium salts Chemical group 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims description 2
- 125000004076 pyridyl group Chemical group 0.000 claims 1
- 229930195734 saturated hydrocarbon Natural products 0.000 claims 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 20
- 239000000047 product Substances 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000006340 racemization Effects 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000010931 ester hydrolysis Methods 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000000376 reactant Substances 0.000 description 4
- AQIHDXGKQHFBNW-UHFFFAOYSA-N 2-(4-hydroxyphenoxy)propanoic acid Chemical compound OC(=O)C(C)OC1=CC=C(O)C=C1 AQIHDXGKQHFBNW-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Chemical class CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000002363 herbicidal effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 150000004714 phosphonium salts Chemical class 0.000 description 3
- 150000004672 propanoic acids Chemical class 0.000 description 3
- 235000019260 propionic acid Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- HNACLDPNEPOAGE-UHFFFAOYSA-N (2-hydroxyphenyl) propaneperoxoate Chemical compound CCC(=O)OOC1=CC=CC=C1O HNACLDPNEPOAGE-UHFFFAOYSA-N 0.000 description 2
- AQIHDXGKQHFBNW-ZCFIWIBFSA-N (2r)-2-(4-hydroxyphenoxy)propanoic acid Chemical compound OC(=O)[C@@H](C)OC1=CC=C(O)C=C1 AQIHDXGKQHFBNW-ZCFIWIBFSA-N 0.000 description 2
- XIFCGIKPAAZFFS-UHFFFAOYSA-N 2,3-difluoro-5-(trifluoromethyl)pyridine Chemical compound FC1=CC(C(F)(F)F)=CN=C1F XIFCGIKPAAZFFS-UHFFFAOYSA-N 0.000 description 2
- 150000005756 2-fluoropyridines Chemical class 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- UUYSCNGPNOYZMC-UHFFFAOYSA-N methyl 2-(4-hydroxyphenoxy)propanoate Chemical compound COC(=O)C(C)OC1=CC=C(O)C=C1 UUYSCNGPNOYZMC-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical group CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 2
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 2
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000005749 2-halopyridines Chemical class 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- GDSROTVTTLUHCO-UHFFFAOYSA-N 3-chloro-2-fluoro-5-(trifluoromethyl)pyridine Chemical compound FC1=NC=C(C(F)(F)F)C=C1Cl GDSROTVTTLUHCO-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000237518 Arion Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical group OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000010936 aqueous wash Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005595 deprotonation Effects 0.000 description 1
- 238000010537 deprotonation reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012039 electrophile Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- HJHUXWBTVVFLQI-UHFFFAOYSA-N tributyl(methyl)azanium Chemical class CCCC[N+](C)(CCCC)CCCC HJHUXWBTVVFLQI-UHFFFAOYSA-N 0.000 description 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C07D213/04—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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/64—One oxygen atom attached in position 2 or 6
-
- 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
- C07D213/62—Oxygen or sulfur atoms
- C07D213/63—One oxygen atom
- C07D213/64—One oxygen atom attached in position 2 or 6
- C07D213/643—2-Phenoxypyridines; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/471,347 US5049675A (en) | 1990-01-29 | 1990-01-29 | Solvent-free process for the preparation of ((pyridinyloxy)phenoxy) propionate derivatives |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL97077A0 IL97077A0 (en) | 1992-03-29 |
| IL97077A true IL97077A (he) | 1995-03-15 |
Family
ID=23871278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL9707791A IL97077A (he) | 1990-01-29 | 1991-01-28 | תהליך להכנת תרכובת פעילה אופטית r אננציומר ])פירידינילאוקסי( פנאוקסי[פרופיונאט |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US5049675A (he) |
| EP (1) | EP0439857B1 (he) |
| JP (1) | JPH0770071A (he) |
| KR (1) | KR910014354A (he) |
| AU (1) | AU6999391A (he) |
| CA (1) | CA2035107A1 (he) |
| DE (1) | DE69015346T2 (he) |
| ES (1) | ES2065473T3 (he) |
| HU (1) | HUT56067A (he) |
| IL (1) | IL97077A (he) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU719087B2 (en) | 1998-03-24 | 2000-05-04 | Syngenta Participations Ag | Process for preparation of propionic acid derivatives |
| CN102977010B (zh) * | 2012-11-26 | 2014-05-28 | 台州学院 | 2-[4-(5-氯-3-氟-2-吡啶氧基)苯氧基]丙酸酯的制备方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK154074C (da) * | 1974-10-17 | 1989-02-27 | Ishihara Sangyo Kaisha | Alfa-(4-(5 eller 3,5 substitueret pyridyl-2-oxy)-phenoxy)-alkan-carboxylsyrer eller derivater deraf til anvendelse som herbicider, herbicidt middel samt fremgangsmaader til bekaempelse af ukrudt |
| US4133675A (en) * | 1976-07-23 | 1979-01-09 | Ciba-Geigy Corporation | Pyridyloxy-phenoxy-alkanecarboxylic acid derivatives which are effective as herbicides and as agents regulating plant growth |
| US4753673A (en) * | 1977-07-22 | 1988-06-28 | The Dow Chemical Company | Trifluoromethyl pyridinyloxyphenoxy and pyridinylthiophenoxy propanoic acids and propanols and derivatives thereof and methods of herbicidal use |
| FR2412532A1 (fr) * | 1977-12-23 | 1979-07-20 | Ciba Geigy Ag | Nouveaux derives d'acide pyridyloxyphenoxypropionique ayant une action herbicide et phytoregulatrice |
| US4266063A (en) * | 1979-12-17 | 1981-05-05 | E. I. Du Pont De Nemours And Company | Process for preparing substituted pyridinyloxy ether intermediate |
| US4565568A (en) * | 1982-06-18 | 1986-01-21 | The Dow Chemical Company | Pyridyl(oxy/thio)phenoxy compounds, herbicidal compositions and methods |
| ZA848416B (en) * | 1983-11-10 | 1986-06-25 | Dow Chemical Co | Fluorophenoxy compounds,herbicidal compositions and methods |
-
1990
- 1990-01-29 US US07/471,347 patent/US5049675A/en not_active Expired - Lifetime
- 1990-12-19 ES ES90203426T patent/ES2065473T3/es not_active Expired - Lifetime
- 1990-12-19 DE DE69015346T patent/DE69015346T2/de not_active Expired - Fee Related
- 1990-12-19 EP EP90203426A patent/EP0439857B1/en not_active Expired - Lifetime
-
1991
- 1991-01-25 JP JP2373891A patent/JPH0770071A/ja active Pending
- 1991-01-25 AU AU69993/91A patent/AU6999391A/en not_active Abandoned
- 1991-01-28 HU HU91291A patent/HUT56067A/hu unknown
- 1991-01-28 KR KR1019910001392A patent/KR910014354A/ko not_active Withdrawn
- 1991-01-28 IL IL9707791A patent/IL97077A/he not_active IP Right Cessation
- 1991-01-28 CA CA002035107A patent/CA2035107A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0439857B1 (en) | 1994-12-21 |
| ES2065473T3 (es) | 1995-02-16 |
| CA2035107A1 (en) | 1991-07-30 |
| US5049675A (en) | 1991-09-17 |
| IL97077A0 (en) | 1992-03-29 |
| DE69015346T2 (de) | 1995-05-04 |
| AU6999391A (en) | 1991-08-01 |
| DE69015346D1 (de) | 1995-02-02 |
| EP0439857A2 (en) | 1991-08-07 |
| HUT56067A (en) | 1991-07-29 |
| EP0439857A3 (en) | 1991-11-21 |
| JPH0770071A (ja) | 1995-03-14 |
| KR910014354A (ko) | 1991-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1202308A (en) | 2,3-difluoro-5-(trifluoromethyl)pyridine and methods of making and using the same | |
| EP0180126B1 (en) | Process for preparing 2-(4-hydroxyphenoxy)alkanoic acid compounds | |
| JPH02212475A (ja) | 2―クロル―5―クロルメチルピリジンの製造法 | |
| EP0655998B1 (en) | Improved process for the synthesis of 2,6-dichloro-5-fluoronicotinic acid and 2,6-dichloro-5-fluoronicotinoyl chloride | |
| JP3963499B2 (ja) | 5−(アルコキシメチル)ピリジン−2,3−ジカルボン酸塩の改良された製造方法 | |
| EP0182279B1 (en) | Process for the optical resolution of racemic mixtures of alpha-naphtyl-propionic acids | |
| US5049675A (en) | Solvent-free process for the preparation of ((pyridinyloxy)phenoxy) propionate derivatives | |
| JPS63156753A (ja) | アルキルトリフルオロアセトアセテ−トの製造方法 | |
| CN121039103A (zh) | 2-(吡啶-2-基氧基甲基)苯乙酸酯的制备方法 | |
| EP0441457B1 (en) | Preparation of higher alkyl esters of carboxylic acids | |
| JPH0475229B2 (he) | ||
| JP3855570B2 (ja) | 4−アセチルテトラヒドロピランの製法 | |
| JPS6121229B2 (he) | ||
| US4266063A (en) | Process for preparing substituted pyridinyloxy ether intermediate | |
| US5258521A (en) | Process of producing optically active propionic acid ester derivatives | |
| EP0627421B1 (en) | Method of preparing 2-chloro-pyridinemethanol | |
| JP2547100B2 (ja) | 2,4,5ートリフルオロー3ーアルコキシ安息香酸の製造法 | |
| JP3293676B2 (ja) | ハロマレイン酸およびハロフマル酸エステル類の製造方法 | |
| US4681941A (en) | Method of preparing esters of aryloxyphenoxy propanoic acid | |
| US5214150A (en) | Preparation of higher alkylesters of carboxylic acids | |
| JP4186027B2 (ja) | フェノキシプロピオン酸誘導体の製造法 | |
| JPH02218666A (ja) | 2―クロロ―5―クロロメチルピリジンの製造方法 | |
| KR100480544B1 (ko) | 페녹시프로피온산유도체의제조방법 | |
| JPH0720939B2 (ja) | アルコキシピリジン―1―オキサイド化合物の製造法 | |
| MXPA98010166A (en) | Procedures for producing fenoxipropion acid derivatives |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RH | Patent void |