GB257815A - Manufacture of 2-oxynaphthalene-6-carboxylic acid - Google Patents

Manufacture of 2-oxynaphthalene-6-carboxylic acid

Info

Publication number
GB257815A
GB257815A GB256526A GB256526A GB257815A GB 257815 A GB257815 A GB 257815A GB 256526 A GB256526 A GB 256526A GB 256526 A GB256526 A GB 256526A GB 257815 A GB257815 A GB 257815A
Authority
GB
United Kingdom
Prior art keywords
oxynaphthalene
carboxylic acid
manufacture
acid
carbon dioxide
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
GB256526A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB256526A priority Critical patent/GB257815A/en
Publication of GB257815A publication Critical patent/GB257815A/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

257,815. Bloxam, A. G., (I. G. Farbenindustrie Akt.-Ges.). Jan. 28, 1926. 2-oxynaphthalene-6-carboxylic acid is obtained by the action of carbon dioxide on the potassium salt of #-naphthol at a high temperature, preferably above 170‹ C. In an example potassium- #-naphtholate is heated with carbon dioxide in an autoclave for 8 hours at 170-230‹ C. After cooling and liberating the acids, the 2 : 6-acid is separated from the 2 : 3-acid, produced at the same time, by making use of its greater solubility in water.
GB256526A 1926-01-28 1926-01-28 Manufacture of 2-oxynaphthalene-6-carboxylic acid Expired GB257815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB256526A GB257815A (en) 1926-01-28 1926-01-28 Manufacture of 2-oxynaphthalene-6-carboxylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB256526A GB257815A (en) 1926-01-28 1926-01-28 Manufacture of 2-oxynaphthalene-6-carboxylic acid

Publications (1)

Publication Number Publication Date
GB257815A true GB257815A (en) 1926-09-09

Family

ID=9741803

Family Applications (1)

Application Number Title Priority Date Filing Date
GB256526A Expired GB257815A (en) 1926-01-28 1926-01-28 Manufacture of 2-oxynaphthalene-6-carboxylic acid

Country Status (1)

Country Link
GB (1) GB257815A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916257A (en) * 1988-01-15 1990-04-10 Hoechst Aktiengesellschaft Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916257A (en) * 1988-01-15 1990-04-10 Hoechst Aktiengesellschaft Process for the purification of 2-hydroxynaphthalene-6-carboxylic acid

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