DE68913888D1 - Verfahren zur Herstellung von 3,5-dialkyl-4-hydroxybenzyl-substituierten Aromaten. - Google Patents
Verfahren zur Herstellung von 3,5-dialkyl-4-hydroxybenzyl-substituierten Aromaten.Info
- Publication number
- DE68913888D1 DE68913888D1 DE89118396T DE68913888T DE68913888D1 DE 68913888 D1 DE68913888 D1 DE 68913888D1 DE 89118396 T DE89118396 T DE 89118396T DE 68913888 T DE68913888 T DE 68913888T DE 68913888 D1 DE68913888 D1 DE 68913888D1
- Authority
- DE
- Germany
- Prior art keywords
- hydroxybenzyl
- dialkyl
- preparation
- substituted aromatics
- aromatics
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/16—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving hydroxy groups of phenols or alcohols or the ether or mineral ester group derived therefrom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/257,981 US4898994A (en) | 1988-10-14 | 1988-10-14 | Process for making 3,5-dialkyl-4-hydroxybenzyl-substituted aromatics |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68913888D1 true DE68913888D1 (de) | 1994-04-21 |
DE68913888T2 DE68913888T2 (de) | 1994-08-11 |
Family
ID=22978595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68913888T Expired - Fee Related DE68913888T2 (de) | 1988-10-14 | 1989-10-04 | Verfahren zur Herstellung von 3,5-dialkyl-4-hydroxybenzyl-substituierten Aromaten. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4898994A (de) |
EP (1) | EP0363801B1 (de) |
JP (1) | JPH02157239A (de) |
CA (1) | CA1320215C (de) |
DE (1) | DE68913888T2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4992597A (en) * | 1989-09-25 | 1991-02-12 | Ethyl Corporation | Antioxidant process |
US4994628A (en) * | 1989-09-25 | 1991-02-19 | Ethyl Corporation | Phenolic antioxidant process |
US5292969A (en) * | 1993-04-01 | 1994-03-08 | Ethyl Corporation | Phenolic antioxidant and process |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3925488A (en) * | 1971-05-24 | 1975-12-09 | Ethyl Corp | Process for the production of 1,3,5-trimethy-2,4,6-tris(3,5-di-tert-alkyl-4-hydroxybenzyl)benzene |
US3845142A (en) * | 1972-01-28 | 1974-10-29 | Y Gurvich | Process for producing polycyclic alkylphenols |
PT67131A (en) * | 1976-10-12 | 1977-11-01 | Nii R I Latexnykh Izdely | Method for the production of 2,4,6-tri-(3,5-ditertiary butyl-4-hydroxybenzyl)mesitylene |
JPS5692237A (en) * | 1979-12-27 | 1981-07-25 | Shin Nisso Kako Co Ltd | Novel preparation of polynuclear polyphenol compound |
-
1988
- 1988-10-14 US US07/257,981 patent/US4898994A/en not_active Expired - Fee Related
-
1989
- 1989-09-21 CA CA000612393A patent/CA1320215C/en not_active Expired - Fee Related
- 1989-10-04 DE DE68913888T patent/DE68913888T2/de not_active Expired - Fee Related
- 1989-10-04 EP EP89118396A patent/EP0363801B1/de not_active Expired - Lifetime
- 1989-10-13 JP JP1265320A patent/JPH02157239A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0363801B1 (de) | 1994-03-16 |
JPH02157239A (ja) | 1990-06-18 |
EP0363801A2 (de) | 1990-04-18 |
DE68913888T2 (de) | 1994-08-11 |
US4898994A (en) | 1990-02-06 |
EP0363801A3 (de) | 1991-10-16 |
CA1320215C (en) | 1993-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ALBEMARLE CORP., RICHMOND, VA., US |
|
8339 | Ceased/non-payment of the annual fee |