GB806534A - Alkylated diphenols and alkylated dinaphthols - Google Patents
Alkylated diphenols and alkylated dinaphtholsInfo
- Publication number
- GB806534A GB806534A GB8811/56A GB881156A GB806534A GB 806534 A GB806534 A GB 806534A GB 8811/56 A GB8811/56 A GB 8811/56A GB 881156 A GB881156 A GB 881156A GB 806534 A GB806534 A GB 806534A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dihydroxydiphenyl
- diisopropyl
- carbon atoms
- tert
- dimethyl
- 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
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- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0084—Antioxidants; Free-radical scavengers
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- 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
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- C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
- C07C39/15—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings, e.g. phenylphenol
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- C07C43/02—Ethers
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- C07C43/14—Unsaturated ethers
- C07C43/178—Unsaturated ethers containing hydroxy or O-metal groups
- C07C43/1782—Unsaturated ethers containing hydroxy or O-metal groups containing six-membered aromatic rings
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C11B5/00—Preserving by using additives, e.g. anti-oxidants
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- Emergency Medicine (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Anti-Oxidant Or Stabilizer Compositions (AREA)
Abstract
Gasolines and hydrocarbon diesel and lubricating oils contain as antioxidants, or stabilizers in the presence of ozone 3,31,5,51-tetraisopropyl - 4,41 - dihydroxydiphenyl; 3,31 - dimethyl - 5,51 - ditent - amyl - 4,41 - dihydroxydiphenyl; 3,31 - dimethyl - 5,51 - diisopropyl-4,41 - dihydroxydiphenyl; 3,31 - diisopropyl-5,51 - di - tert - butyl - 4,41 - dihydroxydiphenyl and 3,31 - dialkyl - 4,41 - dihydroxy - 1,1 - dinaphthyls of the formula <FORM:0806534/III/1> wherein the groups R are the same and are either secondary alkyl radicals containing from 3 to 12 carbon atoms or tertiary alkyl radicals containing from 4 to 12 carbon atoms (see Group IV (b)).ALSO:Natural and synthetic rubber compositions comprise as antioxidants 3,31,5,51-tetraisopropyl-4,41-dihydroxy diphenyl; 3,31-dimethyl-5,51 - di - tert. - amyl - 4,41 - dihydroxydiphenyl; 3,31 - dimethyl - 5,51 - diisopropyl - 4,41 - di hydroxydiphenyl; 3,31 - diisopropyl - 5,51 - di - tert. - butyl - 4,41 - dihydroxydiphenyl and 3,31 - dialkyl - 4,41 - dihydroxy - 1,1 - dinaphthyls having the formula <FORM:0806534/IV (a)/1> where both R's represent secondary alkyl radicals containing from 3 to 12 carbon atoms or tertiary alkyl radicals containing from 4 to 12 carbon atoms (see Group IV (b)).ALSO:The invention comprises 3,31,5,51-tetraisopropyl - 4,41 - dihydroxydiphenyl; 3,31 - dimethyl - 5,51 - di - tert. - amyl - 4,41 - dihydroxydiphenyl; 3,31 - dimethyl - 5,51 - diisopropyl-4,41 - dihydroxydiphenyl; 3,31 - diisopropyl-5,51 - di - tert. - butyl - 4,41 - dihydroxydiphenyl and 3,31 - dialkyl - 4,41 - dihydroxy - 1,1 - dinaphthyls having the formula <FORM:0806534/IV (b)/1> wherein the groups designated by R are the same and are either secondary alkyl radicals containing from 3 to 12 carbon atoms or tertiary alkyl radicals containing from 4 to 12 carbon atoms and a process for the production thereof wherein 2,6-diisopropyl phenyl; 2-methyl-6-tert. amyl phenol; 2-methyl-6-isopropyl phenol, 2-isopropyl-6-tert.-butyl phenol; or a 2-alkyl-naphthol-1 having the formula <FORM:0806534/IV (b)/2> wherein R is a secondary alkyl radical containing from 3 to 12 carbon atoms or a tertiary alkyl radical containing from 4 to 21 carbon atoms is oxidized with chromic acid, nitric acid or ferric chloride to the corresponding diphenoquinone or dinaphthoquinone which is then chemically reduced by the use of stannous chloride, ferrous chloride or zinc and acetic acid. Examples are furnished of the preparation of the specific diphenols mentioned above and 3,31-diisopropyl-4,41-dihydroxy-1,1-dinaphthyl.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US806534XA | 1955-03-21 | 1955-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB806534A true GB806534A (en) | 1958-12-31 |
Family
ID=22158745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8811/56A Expired GB806534A (en) | 1955-03-21 | 1956-03-21 | Alkylated diphenols and alkylated dinaphthols |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1152548A (en) |
GB (1) | GB806534A (en) |
NL (1) | NL254702A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1768717B1 (en) * | 1966-05-26 | 1972-01-13 | Ethyl Corp | Process for the preparation of 4,4'-dihydroxy-3,5,3 ', 5'-tetraalkyldiphenylene |
DE2139564A1 (en) * | 1970-08-08 | 1972-02-17 | CIBA Geigy AG, Basel (Schweiz) | Preparation of 3,3,5,5 tetra isopropyl 4,4 hydroxydiphenyl |
JP2016511248A (en) * | 2013-02-21 | 2016-04-14 | シーアン リーバン ファーマシューティカル カンパニー リミテッド | Novel crystal form of 3,3 ', 5,5'-tetraisopropyl-4,4'-biphenol and process for producing the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1148237B (en) * | 1957-10-21 | 1963-05-09 | Shell Int Research | Process for the preparation of 2,6-dialkylphenols |
DE1191567B (en) * | 1958-09-18 | 1965-04-22 | Du Pont | Molding compounds made from propylene polymers and a stabilizer combination |
DE1154484B (en) * | 1959-11-23 | 1963-09-19 | Shell Int Research | Process for the preparation of 2,6-dialkylphenols |
BE598644A (en) * | 1959-12-31 | |||
DE1183504B (en) * | 1960-04-11 | 1964-12-17 | Ethyl Corp | Use of synergistic mixtures of phosphite esters and methylenebisphenols to stabilize motor fuels, lubricants and higher molecular or polymeric hydrocarbons against auto-oxidation in the heat |
-
0
- NL NL254702D patent/NL254702A/xx unknown
-
1956
- 1956-03-21 GB GB8811/56A patent/GB806534A/en not_active Expired
- 1956-03-21 FR FR1152548D patent/FR1152548A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1768717B1 (en) * | 1966-05-26 | 1972-01-13 | Ethyl Corp | Process for the preparation of 4,4'-dihydroxy-3,5,3 ', 5'-tetraalkyldiphenylene |
DE2139564A1 (en) * | 1970-08-08 | 1972-02-17 | CIBA Geigy AG, Basel (Schweiz) | Preparation of 3,3,5,5 tetra isopropyl 4,4 hydroxydiphenyl |
JP2016511248A (en) * | 2013-02-21 | 2016-04-14 | シーアン リーバン ファーマシューティカル カンパニー リミテッド | Novel crystal form of 3,3 ', 5,5'-tetraisopropyl-4,4'-biphenol and process for producing the same |
Also Published As
Publication number | Publication date |
---|---|
NL254702A (en) | |
FR1152548A (en) | 1958-02-19 |
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