GB1528609A - Manufacture of 2-hydroxynaphthalene-3-carboxylic acid - Google Patents

Manufacture of 2-hydroxynaphthalene-3-carboxylic acid

Info

Publication number
GB1528609A
GB1528609A GB5179475A GB5179475A GB1528609A GB 1528609 A GB1528609 A GB 1528609A GB 5179475 A GB5179475 A GB 5179475A GB 5179475 A GB5179475 A GB 5179475A GB 1528609 A GB1528609 A GB 1528609A
Authority
GB
United Kingdom
Prior art keywords
alkali metal
hydroxynaphthalene
carboxylic acid
carboxylation
amount
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
GB5179475A
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of GB1528609A publication Critical patent/GB1528609A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1528609 Preparation of 2-hydroxynaphthalene-3-carboxylic acid BASF AG 18 Dec 1975 [20 Dec 1974] 51794/75 Heading C2C A process for the manufacture of 2-hydroxynaphthalene-3-carboxylic acid comprises carboxylating an anhydrous alkali metal salt of #-naphthol by reaction with carbon dioxide at a temperature of from 180 to 300‹ C., adding after said carboxylation an alkali metal hydroxide in an amount of from 0À6 to 1 mole per mole of bis-alkali metal salt of 2-hydroxynaphthalene-3-carboxylic acid formed as a result of the carboxylation, dehydrating the resulting mixture and thereafter effecting further carboxylation by reaction with carbon dioxide, the process optionally including one or more further stages each comprising the steps of adding alkali metal hydroxide, dehydration and carboxylation in which case the amount of alkali metal hydroxide added in each repetition is based on the amount of bis-alkali metal salt of 2-hydroxynaphthalene-3-carboxylic acid formed in the immediately preceding carboxylation stage.
GB5179475A 1974-12-20 1975-12-18 Manufacture of 2-hydroxynaphthalene-3-carboxylic acid Expired GB1528609A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742460421 DE2460421A1 (en) 1974-12-20 1974-12-20 PROCESS FOR THE PRODUCTION OF 2-HYDROXYNAPHTHALIN-3-CARBONIC ACID

Publications (1)

Publication Number Publication Date
GB1528609A true GB1528609A (en) 1978-10-18

Family

ID=5934008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5179475A Expired GB1528609A (en) 1974-12-20 1975-12-18 Manufacture of 2-hydroxynaphthalene-3-carboxylic acid

Country Status (7)

Country Link
JP (1) JPS5182247A (en)
BE (1) BE836347A (en)
CH (1) CH597134A5 (en)
DE (1) DE2460421A1 (en)
FR (1) FR2295008A1 (en)
GB (1) GB1528609A (en)
IT (1) IT1052594B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007026277A1 (en) 2007-06-05 2008-12-11 Voith Patent Gmbh Hydropower plant

Also Published As

Publication number Publication date
DE2460421A1 (en) 1976-06-24
BE836347A (en) 1976-06-08
CH597134A5 (en) 1978-03-31
FR2295008A1 (en) 1976-07-16
FR2295008B3 (en) 1979-10-05
IT1052594B (en) 1981-07-20
JPS5182247A (en) 1976-07-19

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee