AU5283899A - Method for precipitating 2-chloronicotinic acid from aqueous solutions - Google Patents
Method for precipitating 2-chloronicotinic acid from aqueous solutionsInfo
- Publication number
- AU5283899A AU5283899A AU52838/99A AU5283899A AU5283899A AU 5283899 A AU5283899 A AU 5283899A AU 52838/99 A AU52838/99 A AU 52838/99A AU 5283899 A AU5283899 A AU 5283899A AU 5283899 A AU5283899 A AU 5283899A
- Authority
- AU
- Australia
- Prior art keywords
- precipitating
- chloronicotinic acid
- aqueous solutions
- acid
- precipitated
- 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.)
- Abandoned
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
- C07D213/04—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
-
- 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)
Abstract
The present invention relates to a method for precipitating/re-precipitating 2-chloronicotinic acid in an acidic medium. This method is characterised in that the 2-chloronicotinic acid is either a) precipitated from a solution that is susceptible of being alkaline in a mixture containing water and C3-C5 alcohol with the potential addition of an acid, or b) re-precipitated by heating in a mixture containing water and C3-C5 alcohol.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19834565A DE19834565A1 (en) | 1998-07-31 | 1998-07-31 | Process for the preparation of 2-halogen nicotinic acid derivatives and new 2-chloronic nicotinic acid esters |
DE19834565 | 1998-07-31 | ||
PCT/EP1999/005069 WO2000007990A1 (en) | 1998-07-31 | 1999-07-16 | Method for precipitating 2-chloronicotinic acid from aqueous solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
AU5283899A true AU5283899A (en) | 2000-02-28 |
Family
ID=7875988
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU52814/99A Abandoned AU5281499A (en) | 1998-07-31 | 1999-07-14 | Method for producing 2-halogen nicotinic acid derivatives and 2-chloronicotinic acid-n-butyl esters as intermediate products |
AU52838/99A Abandoned AU5283899A (en) | 1998-07-31 | 1999-07-16 | Method for precipitating 2-chloronicotinic acid from aqueous solutions |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU52814/99A Abandoned AU5281499A (en) | 1998-07-31 | 1999-07-14 | Method for producing 2-halogen nicotinic acid derivatives and 2-chloronicotinic acid-n-butyl esters as intermediate products |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1102749B1 (en) |
AT (1) | ATE377002T1 (en) |
AU (2) | AU5281499A (en) |
DE (2) | DE19834565A1 (en) |
ES (1) | ES2294851T3 (en) |
WO (2) | WO2000007989A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102883704A (en) | 2010-03-15 | 2013-01-16 | 莱雅公司 | Composition containing a dibenzoylmethane screening agent and a hydrophilic or water-soluble merocyanin uv-screening agent, and a process for the radiation-photostabilization of the dibenzoylmethane screening agent |
FR2972348B1 (en) | 2011-03-09 | 2013-03-08 | Oreal | COSMETIC COMPOSITION CONTAINING A DIBENZOYLMETHANE DERIVATIVE AND A MONOAMIDE MONOAMIDE COMPOUND OF METHYL SUCCINIC ACID; PHOTOSTABILIZATION METHOD |
CN106349157B (en) * | 2016-08-26 | 2019-02-01 | 山东华阳农药化工集团有限公司 | A kind of method of hydro-thermal method synthesis 2- halogenated nicotinate and the halogenated niacin of 2- |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081451A (en) * | 1975-03-20 | 1978-03-28 | Schering Corporation | Process for preparing 2-halogeno nicotinic acids |
CH617680A5 (en) * | 1976-04-02 | 1980-06-13 | Lonza Ag | |
DE3840954A1 (en) * | 1988-12-05 | 1990-06-07 | Shell Int Research | PREPARATION OF 2-CHLORNICOTINIC ACID ESTERS |
DE69419180T2 (en) * | 1994-03-22 | 1999-10-14 | Kumiai Chemical Industry Co | Nicotinic acid derivatives and herbicides |
AU764184B2 (en) * | 1998-01-23 | 2003-08-14 | Pharmacia & Upjohn Company | Oxazolidinone combinatorial libraries, compositions and methods of preparation |
-
1998
- 1998-07-31 DE DE19834565A patent/DE19834565A1/en not_active Withdrawn
-
1999
- 1999-07-14 DE DE59914539T patent/DE59914539D1/en not_active Expired - Lifetime
- 1999-07-14 AU AU52814/99A patent/AU5281499A/en not_active Abandoned
- 1999-07-14 EP EP99938237A patent/EP1102749B1/en not_active Expired - Lifetime
- 1999-07-14 WO PCT/EP1999/004967 patent/WO2000007989A1/en active IP Right Grant
- 1999-07-14 ES ES99938237T patent/ES2294851T3/en not_active Expired - Lifetime
- 1999-07-14 AT AT99938237T patent/ATE377002T1/en active
- 1999-07-16 AU AU52838/99A patent/AU5283899A/en not_active Abandoned
- 1999-07-16 WO PCT/EP1999/005069 patent/WO2000007990A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2000007989A1 (en) | 2000-02-17 |
ES2294851T3 (en) | 2008-04-01 |
WO2000007990A1 (en) | 2000-02-17 |
EP1102749A1 (en) | 2001-05-30 |
EP1102749B1 (en) | 2007-10-31 |
AU5281499A (en) | 2000-02-28 |
ATE377002T1 (en) | 2007-11-15 |
DE59914539D1 (en) | 2007-12-13 |
DE19834565A1 (en) | 2000-02-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |