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GB900136A - Process for the production of phenols brominated in the nucleus - Google Patents

Process for the production of phenols brominated in the nucleus

Info

Publication number
GB900136A
GB900136A GB1922/61A GB192261A GB900136A GB 900136 A GB900136 A GB 900136A GB 1922/61 A GB1922/61 A GB 1922/61A GB 192261 A GB192261 A GB 192261A GB 900136 A GB900136 A GB 900136A
Authority
GB
United Kingdom
Prior art keywords
phenols
brominated
nucleus
production
tribromophenol
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
GB1922/61A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB900136A publication Critical patent/GB900136A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds
    • 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
    • C07C37/62—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/24—Halogenated derivatives
    • C07C39/26—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms
    • C07C39/27—Halogenated derivatives monocyclic monohydroxylic containing halogen bound to ring carbon atoms all halogen atoms being bound to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01—Preparation of ethers
    • C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/22—Preparation of ethers by reactions not forming ether-oxygen bonds by introduction of halogens; by substitution of halogen atoms by other halogen atoms

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

Phenols are brominated in the nucleus by reacting with a bromine/chlorine mixture, the Br:Cl molar ratio being from 1:0.8 to 1:1.2; a catalyst or ultra-violet light may be used additionally. The following are obtained in the examples from the corresponding unbrominated phenols:- (1) and (5) tribromophenol, (2) and (4) tetrabromo-2:2-bis-(4-hydroxyphenyl)-propane, (3) 2:6-dibromo-p-cresol, (6) 2:4:6-tribromophenol-5-carboxylic acid, (7) 2:6-dibromo-4-nitrophenol and (8) dibromononylphenol. U.S.A. Specification 2,607,802 is referred to.
GB1922/61A 1960-02-09 1961-01-17 Process for the production of phenols brominated in the nucleus Expired GB900136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF30496A DE1151811B (en) 1960-02-09 1960-02-09 Process for the production of phenols brominated in the nucleus

Publications (1)

Publication Number Publication Date
GB900136A true GB900136A (en) 1962-07-04

Family

ID=7093789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1922/61A Expired GB900136A (en) 1960-02-09 1961-01-17 Process for the production of phenols brominated in the nucleus

Country Status (2)

Country Link
DE (1) DE1151811B (en)
GB (1) GB900136A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2162859A1 (en) * 1970-12-23 1972-07-13 Societa Italiana Resine S.p.A., Mailand (Italien) Process for the preparation of beta, beta-bis- (3,5-dibromo-4-hydroxyphenyl> propane

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1266309B (en) * 1963-12-27 1968-04-18 Kalk Chemische Fabrik Gmbh Process for the preparation of bromo derivatives of bis (hydroxyphenyl) dialkyl methanes
FR2512014A1 (en) * 1981-08-28 1983-03-04 Guerbet Sa BROMINATED COMPOUNDS FOR USE IN OPACIFYING PRODUCTS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748621C (en) * 1936-11-04 1944-11-06 Process for the bromination of phenols and naphthols
US2607802A (en) * 1951-03-28 1952-08-19 Dow Chemical Co Bromination of aromatic compounds
DE1129957B (en) 1959-02-27 1962-05-24 Kalk Chemische Fabrik Gmbh Process for the preparation of ª ‰, ª ‰ '- bis (3, 5-dibromo-4-oxyphenyl) propane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2162859A1 (en) * 1970-12-23 1972-07-13 Societa Italiana Resine S.p.A., Mailand (Italien) Process for the preparation of beta, beta-bis- (3,5-dibromo-4-hydroxyphenyl> propane
US3868423A (en) * 1970-12-23 1975-02-25 Sir Soc Italiana Resine Spa Process for preparing beta,beta{40 -bis-(3,5-dibromo-4-hydroxy-phenyl)-propane

Also Published As

Publication number Publication date
DE1151811B (en) 1963-07-25

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