DK128004B - Fremgangsmåde til fremstilling af chromanderivater. - Google Patents
Fremgangsmåde til fremstilling af chromanderivater.Info
- Publication number
- DK128004B DK128004B DK178670AA DK178670A DK128004B DK 128004 B DK128004 B DK 128004B DK 178670A A DK178670A A DK 178670AA DK 178670 A DK178670 A DK 178670A DK 128004 B DK128004 B DK 128004B
- Authority
- DK
- Denmark
- Prior art keywords
- preparation
- chromane derivatives
- chromane
- derivatives
- Prior art date
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1404965A CH475977A (de) | 1965-10-12 | 1965-10-12 | Verfahren zur Herstellung eines Chromanderivates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK128004B true DK128004B (da) | 1974-02-18 |
Family
ID=4397512
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK527466AA DK128075B (da) | 1965-10-12 | 1966-10-12 | Fremgangsmåde til fremstilling af d-α-tocopherol. |
| DK178670AA DK128004B (da) | 1965-10-12 | 1970-04-09 | Fremgangsmåde til fremstilling af chromanderivater. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK527466AA DK128075B (da) | 1965-10-12 | 1966-10-12 | Fremgangsmåde til fremstilling af d-α-tocopherol. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3455959A (da) |
| BE (1) | BE687927A (da) |
| BR (1) | BR6683553D0 (da) |
| CH (1) | CH475977A (da) |
| DK (2) | DK128075B (da) |
| ES (1) | ES332169A1 (da) |
| FR (1) | FR1502907A (da) |
| GB (1) | GB1102199A (da) |
| IL (1) | IL26591A (da) |
| SE (1) | SE323084B (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6020388B2 (ja) * | 1974-07-18 | 1985-05-21 | エーザイ株式会社 | ビタミンｅ脂肪族カルボン酸エステルの合成法 |
| JPS607993B2 (ja) * | 1978-01-12 | 1985-02-28 | 株式会社クラレ | ｄｌ−α−トコフエロ−ルの製造方法 |
| DE3044109A1 (de) * | 1980-11-24 | 1982-06-24 | Basf Ag, 6700 Ludwigshafen | Chromanderivate sowie verfahren zu deren herstellung |
| JPS57136582A (en) * | 1981-02-19 | 1982-08-23 | Eisai Co Ltd | Preparation of optically active alpha-tocopherol |
| US11679341B2 (en) * | 2020-04-30 | 2023-06-20 | Waters Technologies Corporation | Differentiation of natural vitamin E from synthetic vitamin E and quantification of tocopherols by supercritical fluid chromatography |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH376898A (de) * | 1958-08-07 | 1964-04-30 | Hoffmann La Roche | Verfahren zur Herstellung von in 6-Stellung substituierten 2,3-Dimethoxy-5-methyl-benzohydrochinonen-(1,4) bzw.-benzochinonen-(1,4) |
| US3064012A (en) * | 1960-07-20 | 1962-11-13 | Merck & Co Inc | Derivatives of coenzyme q10 |
| DE1300571B (de) * | 1963-12-20 | 1969-08-07 | Merck & Co Inc | Verfahren zur Herstellung von 7, 8-Dimethoxy-2, 5-dimethyl-6-oxy-2-(4', 8', 12'-trimethyltridecyl)-chroman |
-
1965
- 1965-10-12 CH CH1404965A patent/CH475977A/de not_active IP Right Cessation
-
1966
- 1966-04-07 BE BE687927D patent/BE687927A/xx unknown
- 1966-09-21 US US580877A patent/US3455959A/en not_active Expired - Lifetime
- 1966-09-28 IL IL26591A patent/IL26591A/en unknown
- 1966-10-10 FR FR79271A patent/FR1502907A/fr not_active Expired
- 1966-10-11 GB GB45454/66A patent/GB1102199A/en not_active Expired
- 1966-10-11 BR BR183553/66A patent/BR6683553D0/pt unknown
- 1966-10-11 ES ES0332169A patent/ES332169A1/es not_active Expired
- 1966-10-12 SE SE13795/66A patent/SE323084B/xx unknown
- 1966-10-12 DK DK527466AA patent/DK128075B/da unknown
-
1970
- 1970-04-09 DK DK178670AA patent/DK128004B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH475977A (de) | 1969-07-31 |
| DK128075B (da) | 1974-02-25 |
| BE687927A (da) | 1967-04-07 |
| IL26591A (en) | 1970-07-19 |
| SE323084B (da) | 1970-04-27 |
| ES332169A1 (es) | 1967-07-16 |
| DE1543669A1 (de) | 1969-10-09 |
| US3455959A (en) | 1969-07-15 |
| BR6683553D0 (pt) | 1973-12-04 |
| GB1102199A (en) | 1968-02-07 |
| FR1502907A (fr) | 1967-11-24 |
| DE1543669B2 (de) | 1976-01-02 |
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