NL7314218A - - Google Patents
Info
- Publication number
- NL7314218A NL7314218A NL7314218A NL7314218A NL7314218A NL 7314218 A NL7314218 A NL 7314218A NL 7314218 A NL7314218 A NL 7314218A NL 7314218 A NL7314218 A NL 7314218A NL 7314218 A NL7314218 A NL 7314218A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/58—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4
- C07D311/70—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring other than with oxygen or sulphur atoms in position 2 or 4 with two hydrocarbon radicals attached in position 2 and elements other than carbon and hydrogen in position 6
- C07D311/72—3,4-Dihydro derivatives having in position 2 at least one methyl radical and in position 6 one oxygen atom, e.g. tocopherols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00299482A US3819657A (en) | 1972-10-20 | 1972-10-20 | Methylation of tocopherols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7314218A true NL7314218A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-04-23 |
Family
ID=23155001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7314218A NL7314218A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-10-20 | 1973-10-16 |
Country Status (8)
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53111069A (en) * | 1977-03-09 | 1978-09-28 | Tama Seikagaku Kenkyusho Kk | Method of introducing methyl group to nonnalphaatocopherol |
| US4239691A (en) * | 1979-06-04 | 1980-12-16 | Eastman Kodak Company | Conversion of non-alpha-tocopherols to alpha-tocopherols |
| EP0159018A3 (en) * | 1984-04-17 | 1986-10-01 | HENKEL CORPORATION (a Delaware corp.) | Production of d-alpha-tocopherol from natural plant sources |
| EP0178400A1 (en) * | 1984-09-25 | 1986-04-23 | HENKEL CORPORATION (a Delaware corp.) | Methylation of non-alpha-tocopherol compounds |
| DE3813624A1 (de) * | 1988-04-22 | 1989-11-02 | Basf Ag | Verfahren zur herstellung von d-(alpha)-tocopherol aus natuerlichen vorprodukten |
| EP0531639B1 (en) * | 1991-07-18 | 1999-09-01 | F. Hoffmann-La Roche Ag | Tocopherol cyclase |
| US5504220A (en) * | 1995-08-17 | 1996-04-02 | Eastman Chemical Company | Preparation of α-tocopherol |
| DK0769497T3 (da) * | 1995-10-18 | 2003-04-07 | Hoffmann La Roche | Hydroxymethylering af tocopheroler |
| US5932748A (en) * | 1997-06-06 | 1999-08-03 | Roche Vitamins Inc. | Process for permethylating non-α-tocopherols to produce α-tocopherol |
| US20030219465A1 (en) * | 2002-05-23 | 2003-11-27 | Suresh Kumar Gidwani | Composition for delivery of dithranol |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2992235A (en) * | 1956-10-15 | 1961-07-11 | Vitamins Ltd | Materials having vitamin e activity |
| GB1031495A (en) * | 1964-01-24 | 1966-06-02 | Eisai Co Ltd | Process for producing ª‡-tocopherol having a high vitamin e activity |
| US3402182A (en) * | 1966-04-28 | 1968-09-17 | Eisai Co Ltd | Method of isolating and refining tocopherol homologues |
| US3631068A (en) * | 1969-12-15 | 1971-12-28 | Eastman Kodak Co | Process for converting a mixed tocopherol concentrate to essentially all alpha-tocopherol |
-
1972
- 1972-10-20 US US00299482A patent/US3819657A/en not_active Expired - Lifetime
-
1973
- 1973-09-26 CA CA182,002A patent/CA983513A/en not_active Expired
- 1973-10-12 DE DE2351272A patent/DE2351272C2/de not_active Expired
- 1973-10-16 NL NL7314218A patent/NL7314218A/xx not_active Application Discontinuation
- 1973-10-16 GB GB4817473A patent/GB1445436A/en not_active Expired
- 1973-10-18 BE BE136832A patent/BE806242A/xx not_active IP Right Cessation
- 1973-10-18 FR FR7337162A patent/FR2203812B1/fr not_active Expired
- 1973-10-18 JP JP48116411A patent/JPS5817192B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5817192B2 (ja) | 1983-04-05 |
| FR2203812B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-05-27 |
| US3819657A (en) | 1974-06-25 |
| FR2203812A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-17 |
| GB1445436A (en) | 1976-08-11 |
| DE2351272C2 (de) | 1984-10-25 |
| JPS4972260A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-12 |
| BE806242A (fr) | 1974-02-15 |
| CA983513A (en) | 1976-02-10 |
| DE2351272A1 (de) | 1974-05-02 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CNR | Transfer of rights (patent application after its laying open for public inspection) |
Free format text: HENKEL CORPORATION |
|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |