GB559893A - Process for the manufacture of pure, crystalline calcium-?-pantothenate - Google Patents
Process for the manufacture of pure, crystalline calcium-?-pantothenateInfo
- Publication number
- GB559893A GB559893A GB12256/42A GB1225642A GB559893A GB 559893 A GB559893 A GB 559893A GB 12256/42 A GB12256/42 A GB 12256/42A GB 1225642 A GB1225642 A GB 1225642A GB 559893 A GB559893 A GB 559893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pantothenate
- calcium
- sodium
- sodium salt
- acid
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/45—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
- C07C233/46—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
Abstract
559,893. Calcium pantothenate. ROCHE PRODUCTS, Ltd. Aug. 31, 1942, No. 12256 Convention date, Sept. 1, 1941. [Class 2 (iii)] Pure crystalline calcium d-pantothenate is obtained by treating an alcoholic solution of sodium panthothenate with an organic acid whose sodium salt is insoluble in water, removing the precipitated sodium salt, diluting the alcoholic solution of pantothenic acid with water, and converting the free acid into the calcium salt. The sodium salt used as the parent material may be preformed or there may be used the solution which is obtained by condensing #-alanine and d (-) -α-hydroxy-##- dimethyl-γ-butyrolactone in the presence of sodium alcoholate. Two examples are given, in both of which the organic acid used is oxalic acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH559893X | 1941-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB559893A true GB559893A (en) | 1944-03-09 |
Family
ID=4520209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12256/42A Expired GB559893A (en) | 1941-09-01 | 1942-08-31 | Process for the manufacture of pure, crystalline calcium-?-pantothenate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB559893A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191688A (en) * | 2017-12-28 | 2018-06-22 | 大连韦德生化科技有限公司 | A kind of method synthesized and crystallize D-VB5 calcium |
-
1942
- 1942-08-31 GB GB12256/42A patent/GB559893A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191688A (en) * | 2017-12-28 | 2018-06-22 | 大连韦德生化科技有限公司 | A kind of method synthesized and crystallize D-VB5 calcium |
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