GB9102519D0 - Chemical process - Google Patents
Chemical processInfo
- Publication number
- GB9102519D0 GB9102519D0 GB9102519A GB9102519A GB9102519D0 GB 9102519 D0 GB9102519 D0 GB 9102519D0 GB 9102519 A GB9102519 A GB 9102519A GB 9102519 A GB9102519 A GB 9102519A GB 9102519 D0 GB9102519 D0 GB 9102519D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- alkyl
- alkylation
- halide
- provides
- 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.)
- Pending
Links
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention provides a process for the preparation of an alkyl 4-halophenyl ether of formula (I), wherein R is C1-4 straight or branched chain alkyl and X is bromo or chloro, which comprises the step of alkylation of phenol by reaction with an alkyl halide of formula R-X (II) in the presence of a base, followed by the step of halogenation of the intermediate alkyl phenyl ether obtained thereby, characterised in that the halogenating agent is elemental halogen derived by oxidation of the anionic halide by-product of the alkylation step. The invention also provides products of formula (I) whenever prepared by the process.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9102519A GB9102519D0 (en) | 1991-02-06 | 1991-02-06 | Chemical process |
PCT/GB1992/000116 WO1992013820A1 (en) | 1991-02-06 | 1992-01-21 | Process for the preparation of alkyl-4-halophenyl ethers |
AU11674/92A AU1167492A (en) | 1991-02-06 | 1992-01-21 | Process for the preparation of alkyl-4-halophenyl ethers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9102519A GB9102519D0 (en) | 1991-02-06 | 1991-02-06 | Chemical process |
Publications (1)
Publication Number | Publication Date |
---|---|
GB9102519D0 true GB9102519D0 (en) | 1991-03-27 |
Family
ID=10689618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9102519A Pending GB9102519D0 (en) | 1991-02-06 | 1991-02-06 | Chemical process |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1167492A (en) |
GB (1) | GB9102519D0 (en) |
WO (1) | WO1992013820A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4443592C1 (en) * | 1994-12-07 | 1996-04-25 | Great Lakes Chem Konstanz Gmbh | Prepn. of alkyl-4-bromo-phenyl ether derivs., useful as intermediates |
DE19531408A1 (en) * | 1995-08-26 | 1997-02-27 | Hoechst Ag | Process for the preparation of (4-bromophenyl) alkyl ethers |
FR2772372B1 (en) * | 1997-12-15 | 2000-05-19 | Rhodia Chimie Sa | O-ALKYLATION PROCESS OF HYDROXYLATED AROMATIC COMPOUNDS |
KR20110041561A (en) * | 2008-08-05 | 2011-04-21 | 바스프 에스이 | Process for the preparation of 4-bromophenyl derivatives |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL67117A (en) * | 1982-10-29 | 1985-11-29 | Braverman Samuel | Process for the selective preparation of parabromophenol and its derivatives |
IL92465A (en) * | 1989-11-27 | 1994-02-27 | Bromine Compounds Ltd Beersheb | Process for the preparation of 4,4'- dibromodiphenylether |
-
1991
- 1991-02-06 GB GB9102519A patent/GB9102519D0/en active Pending
-
1992
- 1992-01-21 WO PCT/GB1992/000116 patent/WO1992013820A1/en active Application Filing
- 1992-01-21 AU AU11674/92A patent/AU1167492A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO1992013820A1 (en) | 1992-08-20 |
AU1167492A (en) | 1992-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2101799A1 (en) | Process for reducing hydrate agglomeration in effluents | |
GB8401571D0 (en) | Fluorinated ethers | |
GB2329897A (en) | Brominated polystyrene having improved thermal stability and color and process for the preparation thereof | |
GB0024752D0 (en) | Oxidative halogenation of aromatic compounds | |
MY107763A (en) | Process for the preparation of a biphenyl derivative | |
GB9102519D0 (en) | Chemical process | |
DK0638539T3 (en) | Process for Preparation of Poly- and Perfluoro-Carboxylic Acid Chlorides | |
IN160698B (en) | ||
EP0216714A3 (en) | Process for the selective chlorination of phenolic compounds | |
KR960014085A (en) | Process for preparing alkylated aromatic carboxylic acids and acyl halides | |
DE3663658D1 (en) | Process for the preparation of pentafluoroethoxy- and pentafluoroethyl thiobenzene derivatives | |
ES2085303T3 (en) | PROCEDURE FOR THE PREPARATION OF TERPENES. | |
Iranpoor et al. | A facile conversion of thiols to alkyl halides by triphenylphosphine/N-halosuccinimides | |
FR2540101B1 (en) | ||
DE3261113D1 (en) | Substituted 2,4-dialkoxybenzenesulfonyl chlorides | |
ES2088078T3 (en) | PROCEDURE FOR THE PREPARATION OF HALOGENATED ANTRANILIC ACIDS. | |
IL90710A0 (en) | Process for bromination of biphenyl with brci | |
FR2611701B1 (en) | PROCESS FOR THE CHLORINATION OF PHENOLIC COMPOUNDS | |
IL133816A0 (en) | Process for the preparation of 2-alkylthio benzoic acid derivatives | |
KR840000579A (en) | Method for preparing rhodium (I) carbonyltriorganophosphorus mono-β-ketoenolate | |
DE3260733D1 (en) | Process for the halogenation of metadihalogenobenzenes | |
JPS57159729A (en) | Manufacture of trichloromethyl-substituted aromatic compounds and aromatic compounds obtained thereby | |
IL62839A0 (en) | Manufacture of 2-chlorobenzothiazole | |
GB2178425B (en) | Process for the preparation of decabromodiphenyl ether | |
MY122648A (en) | Process for the preparation of tetrafluorohalogenbenzenes |