FR2259822A1 - Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalyst - Google Patents
Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalystInfo
- Publication number
- FR2259822A1 FR2259822A1 FR7403943A FR7403943A FR2259822A1 FR 2259822 A1 FR2259822 A1 FR 2259822A1 FR 7403943 A FR7403943 A FR 7403943A FR 7403943 A FR7403943 A FR 7403943A FR 2259822 A1 FR2259822 A1 FR 2259822A1
- Authority
- FR
- France
- Prior art keywords
- insol
- contg
- carboxylic acid
- hydroquinones
- cpds
- 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.)
- Granted
Links
- 239000011973 solid acid Substances 0.000 title abstract 2
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 title 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 title 1
- 239000003054 catalyst Substances 0.000 title 1
- VZWXIQHBIQLMPN-UHFFFAOYSA-N chromane Chemical group C1=CC=C2CCCOC2=C1 VZWXIQHBIQLMPN-UHFFFAOYSA-N 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 239000003377 acid catalyst Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
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)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7403943A FR2259822A1 (en) | 1974-02-06 | 1974-02-06 | Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7403943A FR2259822A1 (en) | 1974-02-06 | 1974-02-06 | Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2259822A1 true FR2259822A1 (en) | 1975-08-29 |
| FR2259822B1 FR2259822B1 (enrdf_load_stackoverflow) | 1978-01-06 |
Family
ID=9134553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7403943A Granted FR2259822A1 (en) | 1974-02-06 | 1974-02-06 | Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalyst |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2259822A1 (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906669A (en) * | 1987-08-25 | 1990-03-06 | Nisshin Flour Milling Co., Ltd. | Isoprenoid derivatives and anti-ulcer agents containing the same |
| EP0924208A1 (de) * | 1997-12-20 | 1999-06-23 | Degussa Aktiengesellschaft | Verfahren zur Herstellung von Alpha-Tocopherolestern |
-
1974
- 1974-02-06 FR FR7403943A patent/FR2259822A1/fr active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906669A (en) * | 1987-08-25 | 1990-03-06 | Nisshin Flour Milling Co., Ltd. | Isoprenoid derivatives and anti-ulcer agents containing the same |
| EP0304842A3 (en) * | 1987-08-25 | 1991-01-16 | Nisshin Flour Milling Co., Ltd. | Isoprenoid derivatives and anti-ulcer agents containing the same |
| EP0924208A1 (de) * | 1997-12-20 | 1999-06-23 | Degussa Aktiengesellschaft | Verfahren zur Herstellung von Alpha-Tocopherolestern |
| US6048988A (en) * | 1997-12-20 | 2000-04-11 | Degussa-Huls Ag | Process for the production of α-tocopherol esters |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2259822B1 (enrdf_load_stackoverflow) | 1978-01-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |