GB1177125A - A process for Purifying Proline - Google Patents
A process for Purifying ProlineInfo
- Publication number
- GB1177125A GB1177125A GB413567A GB413567A GB1177125A GB 1177125 A GB1177125 A GB 1177125A GB 413567 A GB413567 A GB 413567A GB 413567 A GB413567 A GB 413567A GB 1177125 A GB1177125 A GB 1177125A
- Authority
- GB
- United Kingdom
- Prior art keywords
- proline
- adduct
- pentachlorophenol
- decomposition
- ajinomoto
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/04—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D207/10—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members 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
- C07D207/16—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrrole Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
1,177,125. Proline; pentachlorophenol adduct. AJINOMOTO CO. Inc. 27 Jan., 1967 [1 Feb., 1966], No. 4135/67. Heading C2C. Proline is purified by contacting proline and at least an equimolar amount of pentachlorophenol (or an alkali metal salt thereof) in an aqueous medium at a pH of from 3 to 8, isolating the novel proline-pentachlorophenol adduct, and recovering proline by decomposition of the adduct. Decomposition of the adduct may be effected by treating it with aqueous mineral acid, by treatment with a strongly cationic ion-exchange resin, or by suspending the adduct in water and, preferably, heating. The process may be applied to optically active proline or racemic proline or to mixtures thereof, e.g. as fermentation broth or an acidic or enzymatic hydrolysate of proteins.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP573666 | 1966-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1177125A true GB1177125A (en) | 1970-01-07 |
Family
ID=11619368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB413567A Expired GB1177125A (en) | 1966-02-01 | 1967-01-27 | A process for Purifying Proline |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1177125A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105849A (en) * | 2021-12-02 | 2022-03-01 | 保定九孚生化有限公司 | Method for extracting L-hydroxyproline |
-
1967
- 1967-01-27 GB GB413567A patent/GB1177125A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105849A (en) * | 2021-12-02 | 2022-03-01 | 保定九孚生化有限公司 | Method for extracting L-hydroxyproline |
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