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GB380563A - Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene - Google Patents

Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene

Info

Publication number
GB380563A
GB380563A GB2257231A GB2257231A GB380563A GB 380563 A GB380563 A GB 380563A GB 2257231 A GB2257231 A GB 2257231A GB 2257231 A GB2257231 A GB 2257231A GB 380563 A GB380563 A GB 380563A
Authority
GB
United Kingdom
Prior art keywords
hydroxynaphthalene
dibromo
bromo
sulphite
alcohol
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
GB2257231A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2257231A priority Critical patent/GB380563A/en
Publication of GB380563A publication Critical patent/GB380563A/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

Landscapes

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

Abstract

6-Bromo-or 4 : 6-dibromo-2-hydroxynaphthalene is prepared by heating 1 : 6-dibromo- or 1 : 4 : 6-tribromo-2-hydroxynaphthalene or an alkali metal salt of either of these compounds with an alkali metal sulphite, for example in an aqueous or aqueous-alcoholic solution. In examples: (1) 1 : 6-dibromo-2-hydroxynaphthalene is boiled with methyl or ethyl alcohol, potassium sulphite and water and after the alcohol has been distilled off the 6-bromo-2-hydroxynaphthalene is separated; sodium sulphite may replace potassium sulphite and the sodium salt of 1 : 6-dibromo-2-hydroxynaphthalene may be used; (2) 1 : 4 : 6 : tribromo-2-hydroxynaphthalene is boiled with alcohol, water and potassium sulphite to yield 4 : 6-dibromo-2-hydroxynaphthalene.
GB2257231A 1931-08-10 1931-08-10 Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene Expired GB380563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2257231A GB380563A (en) 1931-08-10 1931-08-10 Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2257231A GB380563A (en) 1931-08-10 1931-08-10 Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene

Publications (1)

Publication Number Publication Date
GB380563A true GB380563A (en) 1932-09-22

Family

ID=10181580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2257231A Expired GB380563A (en) 1931-08-10 1931-08-10 Manufacture of 6-bromo-2-hydroxynaphthalene and 4:6-dibromo-2-hydroxynaphthalene

Country Status (1)

Country Link
GB (1) GB380563A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668481A1 (en) * 1990-10-31 1992-04-30 Potasse Produits Chimiques PROCESS FOR DEBROMATION OF DIBROMA DERIVATIVES OF NAPHTHALENE
WO1998011041A1 (en) * 1996-09-13 1998-03-19 Albemarle Corporation Production of 6-bromo-2-naphthol and derivatives
US5792886A (en) * 1997-01-08 1998-08-11 Albemarle Corporation Production of racemic 2-(6-methoxy-2-naphthyl) propionic acid of precursors thereof
WO1998042647A1 (en) * 1997-03-20 1998-10-01 Bromine Compounds Ltd. Process for the manufacture of 2-bromo-6-methoxynaphthalene
US5840996A (en) * 1997-05-08 1998-11-24 Albemarle Corporation Production of brominated methoxynaphthalene compounds
US6080888A (en) * 1997-01-08 2000-06-27 Albemarle Corporation Preparation of olefinic compounds and carboxylic derivatives thereof
US6096920A (en) * 1997-01-08 2000-08-01 Albemarle Corporation Preparation of carboxylic compounds and their derivatives
US6121500A (en) * 1996-09-13 2000-09-19 Albemarle Corporation Production of 6-bromo-2-naphthol and derivatives

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668481A1 (en) * 1990-10-31 1992-04-30 Potasse Produits Chimiques PROCESS FOR DEBROMATION OF DIBROMA DERIVATIVES OF NAPHTHALENE
EP0484219A2 (en) * 1990-10-31 1992-05-06 Potasse Et Produits Chimiques Process for debrominating dibrominated naphthalene derivatives
EP0484219A3 (en) * 1990-10-31 1993-02-24 Potasse Et Produits Chimiques Process for debrominating dibrominated naphthalene derivatives
JPH0692891A (en) * 1990-10-31 1994-04-05 Potasse & Prod Chim Method of debrominating dibromoderivative of naphthalene
JPH0774177B2 (en) 1990-10-31 1995-08-09 ポタス・エ・プロデュイ・シミーク Method for producing 6-bromonaphthalene derivative
WO1998011041A1 (en) * 1996-09-13 1998-03-19 Albemarle Corporation Production of 6-bromo-2-naphthol and derivatives
US6121500A (en) * 1996-09-13 2000-09-19 Albemarle Corporation Production of 6-bromo-2-naphthol and derivatives
US5792886A (en) * 1997-01-08 1998-08-11 Albemarle Corporation Production of racemic 2-(6-methoxy-2-naphthyl) propionic acid of precursors thereof
US6080888A (en) * 1997-01-08 2000-06-27 Albemarle Corporation Preparation of olefinic compounds and carboxylic derivatives thereof
US6096920A (en) * 1997-01-08 2000-08-01 Albemarle Corporation Preparation of carboxylic compounds and their derivatives
WO1998042647A1 (en) * 1997-03-20 1998-10-01 Bromine Compounds Ltd. Process for the manufacture of 2-bromo-6-methoxynaphthalene
US5840996A (en) * 1997-05-08 1998-11-24 Albemarle Corporation Production of brominated methoxynaphthalene compounds

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