GB1198974A - Process of Resolving DL-Carnitine Nitrile Halide - Google Patents
Process of Resolving DL-Carnitine Nitrile HalideInfo
- Publication number
- GB1198974A GB1198974A GB701669A GB701669A GB1198974A GB 1198974 A GB1198974 A GB 1198974A GB 701669 A GB701669 A GB 701669A GB 701669 A GB701669 A GB 701669A GB 1198974 A GB1198974 A GB 1198974A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- carnitine nitrile
- carnitine
- feb
- solvent
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,198,974. Resolution of DL-Carnitine nitrile halides. TANABE SEIYAKU CO. Ltd. 10 Feb., 1969 [12 Feb., 1968], No. 7016/69. Heading C2C. DL-Carnitine nitrile halides are resolved by forming a supersaturated solution of the halide in a solvent, which is preferably water, an alkanol such as methanol, a ketone or a mixture thereof, and increasing the amount of one of the optical enantiomers in the solvent by adding the enantiomer to the solution either prior to cooling the solution to produce the supersaturation or by seeding the solution, or both, whereupon the predominant epimer crystallizes out. The process may be continued by again forming a supersaturated solution from the mother liquors by addition of more racemate and treating with the optical antipode of that originally crystallized, and can be repeated successively to separate each of the enantiomers in turn. Examples detail the isolation of D- and L-carnitine nitrile chloride, and L-carnitine nitrile bromide from the racemates.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP871368 | 1968-02-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1198974A true GB1198974A (en) | 1970-07-15 |
Family
ID=11700565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB701669A Expired GB1198974A (en) | 1968-02-12 | 1969-02-10 | Process of Resolving DL-Carnitine Nitrile Halide |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH511198A (en) |
| DE (1) | DE1907035A1 (en) |
| FR (1) | FR2001745A1 (en) |
| GB (1) | GB1198974A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2536391B1 (en) * | 1982-11-24 | 1985-05-31 | Sanofi Sa | NOVEL CARNITINENITRILE SALTS AND THEIR PREPARATION PROCESS |
| DE4015573A1 (en) * | 1990-05-15 | 1991-11-21 | Degussa | OPTICALLY ACTIVE SALTS FROM A SUBSTITUTED THIAZOLIDIN-4-CARBOXYLATE AND 3-CYANO-2-HYDROXYPROPYLTRIMETHYLAMMONIUM, THEIR PRODUCTION AND USE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151149A (en) * | 1959-01-31 | 1964-09-29 | Berlin Chemie Veb | Production of pure d-and l-carnitinenitrile-chloride |
| US3440279A (en) * | 1964-01-13 | 1969-04-22 | Tanabe Seiyaku Co | Direct resolution of the ammonium salt of racemic n-benzoyl dl-serine |
-
1969
- 1969-02-10 GB GB701669A patent/GB1198974A/en not_active Expired
- 1969-02-11 FR FR6903177A patent/FR2001745A1/en not_active Withdrawn
- 1969-02-12 DE DE19691907035 patent/DE1907035A1/en active Pending
- 1969-02-12 CH CH209669A patent/CH511198A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CH511198A (en) | 1971-08-15 |
| FR2001745A1 (en) | 1969-10-03 |
| DE1907035A1 (en) | 1969-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |