HK1000105A1 - Process for the purification of 2,3-pyridine and quinolinedicarboxylic acid diester compounds - Google Patents
Process for the purification of 2,3-pyridine and quinolinedicarboxylic acid diester compounds Download PDFInfo
- Publication number
- HK1000105A1 HK1000105A1 HK97101565A HK97101565A HK1000105A1 HK 1000105 A1 HK1000105 A1 HK 1000105A1 HK 97101565 A HK97101565 A HK 97101565A HK 97101565 A HK97101565 A HK 97101565A HK 1000105 A1 HK1000105 A1 HK 1000105A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- acid
- diethyl
- solvent
- pyridinedicarboxylate
- process according
- Prior art date
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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
- C07D213/80—Acids; Esters in position 3
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US812517 | 1991-12-20 | ||
| US07/812,517 US5276157A (en) | 1991-12-20 | 1991-12-20 | Process for the purification of 2,3-pyridine and quinolinedicarboxylic acid diester compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| HK1000105A1 true HK1000105A1 (en) | 1997-11-28 |
| HK1000105B HK1000105B (en) | 1997-11-28 |
Family
ID=
Also Published As
| Publication number | Publication date |
|---|---|
| EP0548522B1 (en) | 1997-01-29 |
| IL104136A (en) | 1997-02-18 |
| IL104136A0 (en) | 1993-05-13 |
| TW261611B (enEXAMPLES) | 1995-11-01 |
| ES2096701T3 (es) | 1997-03-16 |
| GR3022449T3 (en) | 1997-04-30 |
| ATE148457T1 (de) | 1997-02-15 |
| DE69217193D1 (de) | 1997-03-13 |
| DE69217193T2 (de) | 1997-05-15 |
| EP0548522A1 (en) | 1993-06-30 |
| DK0548522T3 (da) | 1997-02-17 |
| BR9205095A (pt) | 1993-06-22 |
| US5276157A (en) | 1994-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |