GB1235240A - Process for the production of alkyl phenols - Google Patents
Process for the production of alkyl phenolsInfo
- Publication number
- GB1235240A GB1235240A GB4577869A GB4577869A GB1235240A GB 1235240 A GB1235240 A GB 1235240A GB 4577869 A GB4577869 A GB 4577869A GB 4577869 A GB4577869 A GB 4577869A GB 1235240 A GB1235240 A GB 1235240A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phenol
- alkylation
- reaction mixture
- isopropyl
- production
- 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
-
- 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
- C07C37/14—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 addition reactions, i.e. reactions involving at least one carbon-to-carbon unsaturated bond
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1,235,240. Production of alkyl phenols. UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF A.G. 17 Sept., 1969 [28 Nov., 1968], No. 45778/69. Heading C2C. Alkylphenols having high meta-isomer content are prepared by the alkylation of phenol with an alkylating agent at an elevated temperature of up to 120‹ C. in the presence of an aqueous catalyst solution which contains zinc bromide or zinc chloride and which is activated by the addition of a small quantity of hydrogen bromide or hydrogen chloride, followed by isomerization of the resulting reaction mixture at a temperature above 150‹ C., optionally at an elevated pressure, wherein the relatively lowboiling constituents of the reaction mixture are separated by distillation before isomerization. The example describes the alkylation of phenol with propylene using ZnB 2 /HBr as a catalyst to produce a mixture comprising 34.2% by wt. of m-isopropyl phenol, 13.5% by wt. of p-isopropyl phenol, 6.2% by wt. of o-isopropyl phenol, 12.2% by wt. of diisopropyl phenol and 2.9% by wt. of higher-alkylated compounds.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681811443 DE1811443A1 (en) | 1968-11-28 | 1968-11-28 | Process for the production of alkylphenols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1235240A true GB1235240A (en) | 1971-06-09 |
Family
ID=5714611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4577869A Expired GB1235240A (en) | 1968-11-28 | 1969-09-17 | Process for the production of alkyl phenols |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS505179B1 (en) |
| AT (1) | AT296257B (en) |
| BE (1) | BE740961A (en) |
| CH (1) | CH520088A (en) |
| DE (1) | DE1811443A1 (en) |
| FR (1) | FR2024412A1 (en) |
| GB (1) | GB1235240A (en) |
| NL (1) | NL6917175A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999019275A1 (en) * | 1997-10-09 | 1999-04-22 | Bromine Compounds Ltd. | Process for electrophilic aromatic substitution |
| US6232485B1 (en) | 1997-10-29 | 2001-05-15 | Great Lakes Chemical Corporation | Production of phosphate esters |
-
1968
- 1968-11-28 DE DE19681811443 patent/DE1811443A1/en active Pending
-
1969
- 1969-09-11 CH CH1372569A patent/CH520088A/en not_active IP Right Cessation
- 1969-09-17 GB GB4577869A patent/GB1235240A/en not_active Expired
- 1969-10-23 AT AT999169A patent/AT296257B/en not_active IP Right Cessation
- 1969-10-29 BE BE740961D patent/BE740961A/xx unknown
- 1969-11-17 NL NL6917175A patent/NL6917175A/xx unknown
- 1969-11-24 FR FR6940445A patent/FR2024412A1/fr not_active Withdrawn
- 1969-11-28 JP JP9511169A patent/JPS505179B1/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999019275A1 (en) * | 1997-10-09 | 1999-04-22 | Bromine Compounds Ltd. | Process for electrophilic aromatic substitution |
| US6399835B1 (en) | 1997-10-09 | 2002-06-04 | Bromine Compounds Ltd. | Process for electrophilic aromatic substitution |
| CN1127457C (en) * | 1997-10-09 | 2003-11-12 | 溴化合物有限公司 | Process for electrophilic aromatic substitution |
| US6232485B1 (en) | 1997-10-29 | 2001-05-15 | Great Lakes Chemical Corporation | Production of phosphate esters |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1811443A1 (en) | 1970-06-18 |
| AT296257B (en) | 1972-02-10 |
| NL6917175A (en) | 1970-06-01 |
| FR2024412A1 (en) | 1970-08-28 |
| JPS505179B1 (en) | 1975-02-28 |
| CH520088A (en) | 1972-03-15 |
| BE740961A (en) | 1970-04-01 |
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