GB1384110A - Preparation of 2,6-naphthalene dicarboxylic acid - Google Patents

Preparation of 2,6-naphthalene dicarboxylic acid

Info

Publication number
GB1384110A
GB1384110A GB4044572A GB4044572A GB1384110A GB 1384110 A GB1384110 A GB 1384110A GB 4044572 A GB4044572 A GB 4044572A GB 4044572 A GB4044572 A GB 4044572A GB 1384110 A GB1384110 A GB 1384110A
Authority
GB
United Kingdom
Prior art keywords
dicarboxylic acid
naphthalene dicarboxylic
preparation
reaction
dimethylnaphthalene
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
GB4044572A
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.)
Teijin Ltd
Original Assignee
Teijin Ltd
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 Teijin Ltd filed Critical Teijin Ltd
Publication of GB1384110A publication Critical patent/GB1384110A/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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Abstract

1384110 2,6-Napthalene dicarboxylic acid TEIJIN Ltd 31 Aug 1972 [3 Sept 1971] 40445/72 Heading C2C 2,6-Naphthalene dicarboxylic acid is prepared by a process which comprises reacting 2,6- dimethylnaphthalene with molecular oxygen at a temperature of 160‹ to 250‹ C., the reaction being carried out in a liquid reaction medium comprising acetic acid, the molar ratio of 2,6- dimethylnaphthalene to acetic acid being no greater than 1 : 100, and the reaction medium having dissolved therein, as catalyst for the reaction, cobalt and manganese in the form of components of compounds thereof and bromine in the form of the free element or a component of a compound thereof.
GB4044572A 1971-09-03 1972-08-31 Preparation of 2,6-naphthalene dicarboxylic acid Expired GB1384110A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6789371A JPS563337B2 (en) 1971-09-03 1971-09-03

Publications (1)

Publication Number Publication Date
GB1384110A true GB1384110A (en) 1975-02-19

Family

ID=13358011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4044572A Expired GB1384110A (en) 1971-09-03 1972-08-31 Preparation of 2,6-naphthalene dicarboxylic acid

Country Status (3)

Country Link
JP (1) JPS563337B2 (en)
CA (1) CA979001A (en)
GB (1) GB1384110A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6089446A (en) * 1983-10-24 1985-05-20 Teijin Yuka Kk Production of 2,6-naphthalenedicarboxylic acid
JPS63122645A (en) * 1986-11-11 1988-05-26 Kureha Chem Ind Co Ltd Production of biphenyl-4,4'-dicarboxylic acid
JP2874223B2 (en) * 1989-11-15 1999-03-24 三菱瓦斯化学株式会社 Method for producing high-purity 2,6-naphthalene dicarboxylic acid

Also Published As

Publication number Publication date
CA979001A (en) 1975-12-02
JPS563337B2 (en) 1981-01-24
DE2243158B2 (en) 1976-12-23
DE2243158A1 (en) 1973-03-15
JPS4834153A (en) 1973-05-16

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Legal Events

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