GB9102519D0 - Chemical process - Google Patents

Chemical process

Info

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
Application number
GB9102519A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB9102519A priority Critical patent/GB9102519D0/en
Publication of GB9102519D0 publication Critical patent/GB9102519D0/en
Priority to PCT/GB1992/000116 priority patent/WO1992013820A1/en
Priority to AU11674/92A priority patent/AU1167492A/en
Pending legal-status Critical Current

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.
GB9102519A 1991-02-06 1991-02-06 Chemical process Pending GB9102519D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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