NL6414659A - - Google Patents
Info
- Publication number
- NL6414659A NL6414659A NL6414659A NL6414659A NL6414659A NL 6414659 A NL6414659 A NL 6414659A NL 6414659 A NL6414659 A NL 6414659A NL 6414659 A NL6414659 A NL 6414659A NL 6414659 A NL6414659 A NL 6414659A
- 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
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33228763A | 1963-12-20 | 1963-12-20 | |
| US605211A US3364234A (en) | 1963-12-20 | 1966-12-28 | Chroman compounds and preparation of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6414659A true NL6414659A (xx) | 1965-06-21 |
Family
ID=26988148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6414659A NL6414659A (xx) | 1963-12-20 | 1964-12-16 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3364234A (xx) |
| BR (1) | BR6465394D0 (xx) |
| CH (1) | CH439323A (xx) |
| DE (1) | DE1300571B (xx) |
| FR (1) | FR1583155A (xx) |
| GB (1) | GB1086183A (xx) |
| NL (1) | NL6414659A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH475977A (de) * | 1965-10-12 | 1969-07-31 | Hoffmann La Roche | Verfahren zur Herstellung eines Chromanderivates |
| US3459773A (en) * | 1966-12-27 | 1969-08-05 | Takasago Perfumery Co Ltd | Process for producing alpha-tocopherol and its esters |
| CH547278A (de) * | 1971-01-11 | 1974-03-29 | Hoffmann La Roche | Verfahren zur herstellung von chromanderivaten. |
| US3903317A (en) * | 1974-04-29 | 1975-09-02 | Hoffmann La Roche | Preservation of foodstuffs with synergistic antioxidant composition comprising ascorbic acid and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid |
| US3986980A (en) * | 1974-04-29 | 1976-10-19 | Hoffmann-La Roche Inc. | Synergistic antioxidant composition comprising ascorbic acid and 6-hydroxy-2,5,7,8-tetramethylchroman-2- carboxylic acid |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA577760A (en) * | 1959-06-16 | Pittsburgh Plate Glass Company | Preparation of phenolic alcohols | |
| CA453166A (en) * | 1948-12-07 | Isler Otto | Dl-tocopherols and process for the manufacture of same | |
| DE731972C (de) * | 1938-04-01 | 1943-02-25 | Hoffmann La Roche | Verfahren zur Darstellung von d 1-Tocopherolen |
| GB529082A (en) * | 1938-05-31 | 1940-11-13 | Univ Minnesota | Improvements in chromanes and method of producing the same |
| DE713749C (de) * | 1938-07-20 | 1941-11-15 | Hoffmann La Roche & Co Akt Ges | Verfahren zur Darstellung von Kondensationsprodukten |
| DE711332C (de) * | 1938-12-07 | 1941-09-30 | Merck Chem Fab E | Verfahren zur Herstellung von Chromanen |
| BE581501A (fr) * | 1958-08-27 | 1960-02-08 | Merck & Co Inc | Composés benzoquinoniques et leur préparation. |
| AT215995B (de) * | 1958-11-07 | 1961-07-10 | Hoffmann La Roche | Verfahren zur Herstellung von neuen Chromanderivaten |
| GB870638A (en) * | 1958-11-07 | 1961-06-14 | Hoffmann La Roche | Derivatives of 2,3-dimethoxy-5-methyl benzohydroquinone-(1,4) and a process for the manufacture thereof |
| US3026330A (en) * | 1960-05-09 | 1962-03-20 | Merck & Co Inc | Chroman compounds having antioxidant activity |
| AT246437B (de) * | 1961-05-29 | 1966-04-25 | Axel Richard Dr Techn Wejnarth | Gesinterte Legierung |
-
1964
- 1964-12-02 DE DEM63325A patent/DE1300571B/de active Pending
- 1964-12-09 GB GB50122/64A patent/GB1086183A/en not_active Expired
- 1964-12-16 BR BR165394/64A patent/BR6465394D0/pt unknown
- 1964-12-16 NL NL6414659A patent/NL6414659A/xx unknown
- 1964-12-17 FR FR1583155D patent/FR1583155A/fr not_active Expired
- 1964-12-18 CH CH1634564A patent/CH439323A/de unknown
-
1966
- 1966-12-28 US US605211A patent/US3364234A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CH439323A (de) | 1967-07-15 |
| US3364234A (en) | 1968-01-16 |
| DE1300571B (de) | 1969-08-07 |
| BR6465394D0 (pt) | 1973-09-11 |
| FR1583155A (xx) | 1969-10-24 |
| GB1086183A (en) | 1967-10-04 |