DE2721766C2 - - Google Patents
Info
- Publication number
- DE2721766C2 DE2721766C2 DE2721766A DE2721766A DE2721766C2 DE 2721766 C2 DE2721766 C2 DE 2721766C2 DE 2721766 A DE2721766 A DE 2721766A DE 2721766 A DE2721766 A DE 2721766A DE 2721766 C2 DE2721766 C2 DE 2721766C2
- Authority
- DE
- Germany
- Prior art keywords
- allethrolone
- configuration
- optically active
- racemic
- mixture
- 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
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B55/00—Racemisation; Complete or partial inversion
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/703—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups
- C07C49/707—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups a keto group being part of a three- to five-membered ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7614617A FR2351079A1 (fr) | 1976-05-14 | 1976-05-14 | Procede de racemisation d'allethrolone optiquement active |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2721766A1 DE2721766A1 (de) | 1977-11-24 |
| DE2721766C2 true DE2721766C2 (US06589383-20030708-C00041.png) | 1987-09-10 |
Family
ID=9173168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19772721766 Granted DE2721766A1 (de) | 1976-05-14 | 1977-05-13 | Verfahren zur razemisierung von optisch aktivem allethrolon |
Country Status (9)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0367515A1 (en) * | 1988-11-01 | 1990-05-09 | Yamakawa Chemical Industry Co., Ltd. | Method of racemization of optically active tetrahydrofuran 2-carboxylic acid |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL189584C (nl) * | 1979-01-15 | 1993-05-17 | Ove Johansson | Verbindingsstelsel. |
| FR2458531A1 (fr) * | 1979-06-12 | 1981-01-02 | Roussel Uclaf | Procede de preparation d'allethrolone optiquement active par scission d'un ester d'acide chiral d'allethrolone optiquement active a l'aide d'un halogenure de bore |
| EP0122779B1 (en) * | 1983-04-19 | 1986-07-23 | Sumitomo Chemical Company, Limited | Production of optically active cyclopentenolones |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS533384B2 (US06589383-20030708-C00041.png) * | 1974-01-25 | 1978-02-06 | ||
| JPS533385B2 (US06589383-20030708-C00041.png) * | 1974-08-12 | 1978-02-06 |
-
1976
- 1976-05-14 FR FR7614617A patent/FR2351079A1/fr active Granted
-
1977
- 1977-05-09 US US05/795,021 patent/US4111993A/en not_active Expired - Lifetime
- 1977-05-12 NL NLAANVRAGE7705293,A patent/NL188035C/xx not_active IP Right Cessation
- 1977-05-13 IT IT49405/77A patent/IT1078138B/it active
- 1977-05-13 BE BE177541A patent/BE854596A/xx not_active IP Right Cessation
- 1977-05-13 DE DE19772721766 patent/DE2721766A1/de active Granted
- 1977-05-13 CH CH603677A patent/CH602539A5/xx not_active IP Right Cessation
- 1977-05-13 GB GB20296/77A patent/GB1528115A/en not_active Expired
- 1977-05-13 JP JP5446277A patent/JPS52139045A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0367515A1 (en) * | 1988-11-01 | 1990-05-09 | Yamakawa Chemical Industry Co., Ltd. | Method of racemization of optically active tetrahydrofuran 2-carboxylic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1078138B (it) | 1985-05-08 |
| US4111993A (en) | 1978-09-05 |
| NL7705293A (nl) | 1977-11-16 |
| JPS61814B2 (US06589383-20030708-C00041.png) | 1986-01-11 |
| JPS52139045A (en) | 1977-11-19 |
| NL188035B (nl) | 1991-10-16 |
| CH602539A5 (US06589383-20030708-C00041.png) | 1978-07-31 |
| DE2721766A1 (de) | 1977-11-24 |
| GB1528115A (en) | 1978-10-11 |
| FR2351079B1 (US06589383-20030708-C00041.png) | 1978-10-20 |
| NL188035C (nl) | 1992-03-16 |
| BE854596A (fr) | 1977-11-14 |
| FR2351079A1 (fr) | 1977-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8128 | New person/name/address of the agent |
Representative=s name: ASSMANN, E., DIPL.-CHEM. DR.RER.NAT. KLINGSEISEN, |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |