DE3461458D1 - High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol - Google Patents
High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenolInfo
- Publication number
- DE3461458D1 DE3461458D1 DE8484108090T DE3461458T DE3461458D1 DE 3461458 D1 DE3461458 D1 DE 3461458D1 DE 8484108090 T DE8484108090 T DE 8484108090T DE 3461458 T DE3461458 T DE 3461458T DE 3461458 D1 DE3461458 D1 DE 3461458D1
- Authority
- DE
- Germany
- Prior art keywords
- biphenol
- tetraalkyl
- preparing
- high yield
- yield process
- 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
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
- C07C37/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation
- C07C37/07—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation with simultaneous reduction of C=O group in that ring
-
- 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
- C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/514,256 US4487978A (en) | 1983-07-15 | 1983-07-15 | High yield process for preparing 4,4'-biphenol and tert-alkylated-alkylbenzenes |
US06/514,253 US4482755A (en) | 1983-07-15 | 1983-07-15 | High yield process for preparing 4,4'-biphenol and para-alkylbenzenes |
US06/514,255 US4487977A (en) | 1983-07-15 | 1983-07-15 | High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3461458D1 true DE3461458D1 (en) | 1987-01-15 |
Family
ID=27414572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484108090T Expired DE3461458D1 (en) | 1983-07-15 | 1984-07-10 | High yield process for preparing 3,3',5,5'-tetraalkyl-4,4'-biphenol |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0131897B1 (de) |
DE (1) | DE3461458D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2767753B2 (ja) * | 1989-12-15 | 1998-06-18 | 三菱化学株式会社 | 4,4’‐ジヒドロキシビフェニルの製造方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1084433A (en) * | 1963-09-03 | 1967-09-20 | Gen Electric | Manufacture of biphenols |
DE1493792A1 (de) * | 1965-11-12 | 1969-05-22 | Gulf Research Development Co | Verfahren zum hydrierenden Entalkylieren von alkylaromatischen Hydroxyverbindungen |
GB1133405A (en) * | 1966-05-26 | 1968-11-13 | Ethyl Corp | A process for the production of bisphenols |
DE2314950C3 (de) * | 1973-03-26 | 1978-04-06 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Hydroxydiphenyl |
US4085124A (en) * | 1975-11-24 | 1978-04-18 | Ici Americas Inc. | Oxidative coupling of alkylphenols, alkoxyphenols and 1-naphthols catalyzed by metal complexes of amino compounds |
DE2554702C3 (de) * | 1975-12-05 | 1980-09-11 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von m- und/oder p-Kresol durch katalytische Entalkylierung von tert.-alkyl-substituierten Phenolen |
US4205187A (en) * | 1979-01-02 | 1980-05-27 | Union Carbide Corporation | Process for preparing p,p'-biphenol of high purity |
US4410736A (en) * | 1981-04-06 | 1983-10-18 | The Dow Chemical Company | Coupling of phenols with diphenoquinones |
US4354047A (en) * | 1981-05-22 | 1982-10-12 | The Dow Chemical Company | Nickel catalysts for oxidative coupling of phenols |
US4354048A (en) * | 1981-05-22 | 1982-10-12 | The Dow Chemical Company | Copper chromite catalysts for oxidative coupling of phenols |
-
1984
- 1984-07-10 DE DE8484108090T patent/DE3461458D1/de not_active Expired
- 1984-07-10 EP EP19840108090 patent/EP0131897B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0131897A1 (de) | 1985-01-23 |
EP0131897B1 (de) | 1986-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8331 | Complete revocation |