NO316735B1 - Forbedret fremgangsmate for fremstilling av substituerte pyridinkarboksylsyrer samt anvendelse av de derved oppnadde pyridinkarboksylsyrene - Google Patents
Forbedret fremgangsmate for fremstilling av substituerte pyridinkarboksylsyrer samt anvendelse av de derved oppnadde pyridinkarboksylsyrene Download PDFInfo
- Publication number
- NO316735B1 NO316735B1 NO20006527A NO20006527A NO316735B1 NO 316735 B1 NO316735 B1 NO 316735B1 NO 20006527 A NO20006527 A NO 20006527A NO 20006527 A NO20006527 A NO 20006527A NO 316735 B1 NO316735 B1 NO 316735B1
- Authority
- NO
- Norway
- Prior art keywords
- substituted
- carboxylic acids
- solution
- pyridine carboxylic
- acid
- Prior art date
Links
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical class OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title abstract description 3
- 150000003248 quinolines Chemical class 0.000 claims abstract description 14
- 238000005949 ozonolysis reaction Methods 0.000 claims abstract description 12
- 229940111121 antirheumatic drug quinolines Drugs 0.000 claims abstract description 10
- 239000004009 herbicide Substances 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 24
- 150000002978 peroxides Chemical class 0.000 claims description 19
- JRLTTZUODKEYDH-UHFFFAOYSA-N 8-methylquinoline Chemical compound C1=CN=C2C(C)=CC=CC2=C1 JRLTTZUODKEYDH-UHFFFAOYSA-N 0.000 claims description 18
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 claims description 14
- 238000000354 decomposition reaction Methods 0.000 claims description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- JYUCDFZMJMRPHS-UHFFFAOYSA-N 2-acetylpyridine-3-carboxylic acid Chemical compound CC(=O)C1=NC=CC=C1C(O)=O JYUCDFZMJMRPHS-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 239000011541 reaction mixture Substances 0.000 claims description 7
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000003929 acidic solution Substances 0.000 claims description 3
- 125000002081 peroxide group Chemical group 0.000 claims description 3
- PJOKZYHMROYEBV-UHFFFAOYSA-N 3-ethyl-8-methylquinoline Chemical compound CC1=CC=CC2=CC(CC)=CN=C21 PJOKZYHMROYEBV-UHFFFAOYSA-N 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000011260 aqueous acid Substances 0.000 claims description 2
- 150000007659 semicarbazones Chemical class 0.000 claims description 2
- 230000002363 herbicidal effect Effects 0.000 abstract 1
- 239000000543 intermediate Substances 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 21
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000047 product Substances 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 9
- 239000006227 byproduct Substances 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- ISMDINOVHDBVPL-UHFFFAOYSA-N 2-acetyl-4-methylpyridine-3-carboxylic acid Chemical compound CC(=O)C1=NC=CC(C)=C1C(O)=O ISMDINOVHDBVPL-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000004128 high performance liquid chromatography Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical group 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- JWZZKOKVBUJMES-UHFFFAOYSA-N (+-)-Isoprenaline Chemical compound CC(C)NCC(O)C1=CC=C(O)C(O)=C1 JWZZKOKVBUJMES-UHFFFAOYSA-N 0.000 description 1
- KFQXASFLYDSLLL-UHFFFAOYSA-N 2-acetyl-6-methylpyridine-3-carboxylic acid Chemical compound CC(=O)C1=NC(C)=CC=C1C(O)=O KFQXASFLYDSLLL-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 1
- 239000004133 Sodium thiosulphate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 238000010533 azeotropic distillation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- JYVLIDXNZAXMDK-UHFFFAOYSA-N methyl propyl carbinol Natural products CCCC(C)O JYVLIDXNZAXMDK-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 235000007715 potassium iodide Nutrition 0.000 description 1
- GJAWHXHKYYXBSV-UHFFFAOYSA-N quinolinic acid Chemical class OC(=O)C1=CC=CN=C1C(O)=O GJAWHXHKYYXBSV-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 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
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
-
- 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
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/80—Acids; Esters in position 3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0106998A AT406371B (de) | 1998-06-22 | 1998-06-22 | Verbessertes verfahren zur herstellung von substituierten pyridincarbonsäuren |
| PCT/EP1999/003882 WO1999067217A2 (de) | 1998-06-22 | 1999-06-04 | Verfahren zur herstellung von substituierten pyridincarbonsäuren |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20006527D0 NO20006527D0 (no) | 2000-12-20 |
| NO20006527L NO20006527L (no) | 2000-12-20 |
| NO316735B1 true NO316735B1 (no) | 2004-04-19 |
Family
ID=3505937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20006527A NO316735B1 (no) | 1998-06-22 | 2000-12-20 | Forbedret fremgangsmate for fremstilling av substituerte pyridinkarboksylsyrer samt anvendelse av de derved oppnadde pyridinkarboksylsyrene |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6346623B1 (zh) |
| EP (1) | EP1089975B1 (zh) |
| JP (1) | JP4610737B2 (zh) |
| CN (1) | CN1117078C (zh) |
| AT (2) | AT406371B (zh) |
| AU (1) | AU756514B2 (zh) |
| CA (1) | CA2335854C (zh) |
| DE (1) | DE59909343D1 (zh) |
| DK (1) | DK1089975T3 (zh) |
| EA (1) | EA003054B1 (zh) |
| ES (1) | ES2216522T3 (zh) |
| NO (1) | NO316735B1 (zh) |
| WO (1) | WO1999067217A2 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2454136B (en) * | 2006-09-12 | 2011-11-30 | Jubilant Organosys Ltd | Eco-friendly process for recovery of pyridine and/or its derivatives |
-
1998
- 1998-06-22 AT AT0106998A patent/AT406371B/de not_active IP Right Cessation
-
1999
- 1999-06-04 DK DK99927879T patent/DK1089975T3/da active
- 1999-06-04 ES ES99927879T patent/ES2216522T3/es not_active Expired - Lifetime
- 1999-06-04 EA EA200100064A patent/EA003054B1/ru not_active IP Right Cessation
- 1999-06-04 US US09/701,543 patent/US6346623B1/en not_active Expired - Lifetime
- 1999-06-04 JP JP2000555871A patent/JP4610737B2/ja not_active Expired - Lifetime
- 1999-06-04 AT AT99927879T patent/ATE265435T1/de not_active IP Right Cessation
- 1999-06-04 CN CN99807770A patent/CN1117078C/zh not_active Expired - Lifetime
- 1999-06-04 DE DE59909343T patent/DE59909343D1/de not_active Expired - Lifetime
- 1999-06-04 WO PCT/EP1999/003882 patent/WO1999067217A2/de active IP Right Grant
- 1999-06-04 EP EP99927879A patent/EP1089975B1/de not_active Expired - Lifetime
- 1999-06-04 AU AU45071/99A patent/AU756514B2/en not_active Ceased
- 1999-06-04 CA CA002335854A patent/CA2335854C/en not_active Expired - Lifetime
-
2000
- 2000-12-20 NO NO20006527A patent/NO316735B1/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EA200100064A1 (ru) | 2001-06-25 |
| ES2216522T3 (es) | 2004-10-16 |
| US6346623B1 (en) | 2002-02-12 |
| AU4507199A (en) | 2000-01-10 |
| AT406371B (de) | 2000-04-25 |
| EP1089975A1 (de) | 2001-04-11 |
| JP4610737B2 (ja) | 2011-01-12 |
| CA2335854A1 (en) | 1999-12-29 |
| ATE265435T1 (de) | 2004-05-15 |
| ATA106998A (de) | 1999-09-15 |
| NO20006527D0 (no) | 2000-12-20 |
| DE59909343D1 (de) | 2004-06-03 |
| WO1999067217A2 (de) | 1999-12-29 |
| EP1089975B1 (de) | 2004-04-28 |
| EA003054B1 (ru) | 2002-12-26 |
| CN1117078C (zh) | 2003-08-06 |
| WO1999067217A3 (de) | 2000-03-16 |
| CN1306513A (zh) | 2001-08-01 |
| NO20006527L (no) | 2000-12-20 |
| DK1089975T3 (da) | 2004-05-24 |
| AU756514B2 (en) | 2003-01-16 |
| CA2335854C (en) | 2008-09-23 |
| JP2002518479A (ja) | 2002-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100483775B1 (ko) | 아스코르브산의제조방법 | |
| AU2008283242B2 (en) | Process for producing toluidine compound | |
| CN109096213A (zh) | 一种1h-1,2,3-三氮唑的制备方法 | |
| NO316735B1 (no) | Forbedret fremgangsmate for fremstilling av substituerte pyridinkarboksylsyrer samt anvendelse av de derved oppnadde pyridinkarboksylsyrene | |
| CN113278021B (zh) | 1,7-二氮杂螺[3.5]壬烷-7-甲酸叔丁酯及其草酸盐的制备方法 | |
| WO2007117027A1 (ja) | 有機酸化物の製造方法 | |
| Kim et al. | A Facile Synthetic Method of Herbicidal 2, 3-Dihydro-3-methylene-2-substituted-phenyl-1 H-isoindol-1-one Derivatives | |
| EP0939079B1 (en) | Process for the preparation of 2-chloro-3-hydroxy pyridine | |
| US3969348A (en) | Process for the manufacture of 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one-2,2-dioxide | |
| WO2013037291A1 (en) | Process for the preparation of n-substituted pyrazole compounds | |
| WO2009017239A2 (en) | Process for producing toluidine compound | |
| JP3486648B2 (ja) | ピラゾールカルボン酸類の製造方法 | |
| JP4824850B2 (ja) | ハロゲノピリジンカルボキサミドの製造方法 | |
| CN116903528A (zh) | 一种2-氨基磺酰基-n，n-二甲基烟酰胺的合成方法 | |
| WO2020132820A1 (zh) | 一种3-(苄氧基)-4-氧代-4h-吡喃-2-羧酸的合成方法 | |
| CN116969881A (zh) | 一种吡仑帕奈的合成方法 | |
| CN110790711A (zh) | 一种2-氯-4-氨基-6-甲基嘧啶化合物制备方法 | |
| CN112771044A (zh) | 阿哌沙班的制备方法 | |
| EP1124803A1 (en) | Preparation of chloromethylpyridine hydrochlorides | |
| JPH05125047A (ja) | ２−クロルピリジンの製法 | |
| JPS6059911B2 (ja) | ピルブテロ−ルおよび同族体の製造のための中間体 | |
| CN104130225A (zh) | 一种季酮酸的合成方法 | |
| CS239754B1 (cs) | Způsob výroby tetra(2-propoxy)titanu |