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GB850888A - Process for the preparation of para-fluorophenol from para-bromofluorobenzene - Google Patents

Process for the preparation of para-fluorophenol from para-bromofluorobenzene

Info

Publication number
GB850888A
GB850888A GB3797758A GB3797758A GB850888A GB 850888 A GB850888 A GB 850888A GB 3797758 A GB3797758 A GB 3797758A GB 3797758 A GB3797758 A GB 3797758A GB 850888 A GB850888 A GB 850888A
Authority
GB
United Kingdom
Prior art keywords
para
calcium
fluorophenol
hydroxide
sodium
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
Application number
GB3797758A
Inventor
Max Minas Boudakian
Robert Joseph Eber
William Edward Kuehlewind Jr
Richard Edward Mcarthur
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.)
Olin Corp
Original Assignee
Olin Corp
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 Olin Corp filed Critical Olin Corp
Priority to GB3797758A priority Critical patent/GB850888A/en
Publication of GB850888A publication Critical patent/GB850888A/en
Expired legal-status Critical Current

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
    • C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
    • C07C37/02—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis by substitution of halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A method for the preparation of para-fluorophenol is characterised by heating at a temperature within the range from 175 DEG C. to 350 DEG C. in liquid phase a mixture of para-bromofluorobenzene, a material selected from sodium hydroxide, calcium hydroxide, sodium carbonate, sodium bicarbonate, calcium carbonate and calcium bicarbonate and water in weight amount 2 to 99 times the weight of said material, the pressure being sufficiently high to maintain the reaction mixture in liquid phase, whereby a salt of para-fluorophenol is formed and recovering para-fluoro-phenol from said salt, the molar ratio of said material to para-bromo-fluorobenzene being within-the range from 0,5 to 8 when said material is sodium hydroxide or sodium bicarbonate and the molar ratio of said material to para-bromofluorobenzene being within the range from 0,25 to 4 when said material is calcium hydroxide sodium carbonate, calcium carbonate, calcium carbonate and calcium bicarbonate and if desired carrying out the initial reaction in the presence of a catalyst comprising metallic copper or a copper or cobalt salt in an amount of from 0,1 to 10% by weight based upon the weight of the para fluorobenzene. Among the catalysts specified are copper chloride, cupric acetate, cobalt and copper naphthenates, cupric or cuprous oxide or hydroxide and Devarda's metal. Examples are furnished. 2,21-Dihydroxy-5,51-difluorobiphenyl sulphide is obtained by treating a carbon disulphide solution of para-fluorophenol with sulphur dichloride and may be employed as a fungicide (see Group VIII).ALSO:A fungicidal composition comprises 2,21-dihydroxy-5,51-difluorophenyl sulphide (see Group IV(b)) dissolved in petroleum ether.
GB3797758A 1958-11-25 1958-11-25 Process for the preparation of para-fluorophenol from para-bromofluorobenzene Expired GB850888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3797758A GB850888A (en) 1958-11-25 1958-11-25 Process for the preparation of para-fluorophenol from para-bromofluorobenzene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3797758A GB850888A (en) 1958-11-25 1958-11-25 Process for the preparation of para-fluorophenol from para-bromofluorobenzene

Publications (1)

Publication Number Publication Date
GB850888A true GB850888A (en) 1960-10-12

Family

ID=10400346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3797758A Expired GB850888A (en) 1958-11-25 1958-11-25 Process for the preparation of para-fluorophenol from para-bromofluorobenzene

Country Status (1)

Country Link
GB (1) GB850888A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940821A (en) * 1989-03-20 1990-07-10 The Dow Chemical Company Preparation of fluorophenols
WO1997026235A1 (en) * 1996-01-15 1997-07-24 Bromine Compounds Ltd. PROCESS FOR THE PREPARATION OF para-FLUOROPHENOL
WO1999002473A1 (en) * 1997-07-07 1999-01-21 Bromine Compounds Ltd. A process for the preparation of para-fluorophenol

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940821A (en) * 1989-03-20 1990-07-10 The Dow Chemical Company Preparation of fluorophenols
EP0389056A1 (en) * 1989-03-20 1990-09-26 DowElanco Preparation of fluorophenols
WO1997026235A1 (en) * 1996-01-15 1997-07-24 Bromine Compounds Ltd. PROCESS FOR THE PREPARATION OF para-FLUOROPHENOL
US6037503A (en) * 1996-01-15 2000-03-14 Bromine Compounds Ltd. Process for the preparation of para-fluorophenol
WO1999002473A1 (en) * 1997-07-07 1999-01-21 Bromine Compounds Ltd. A process for the preparation of para-fluorophenol
US6410803B1 (en) 1997-07-07 2002-06-25 Bromine Compounds Limited Process for the preparation of para-fluorophenol

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