GB1384110A - Preparation of 2,6-naphthalene dicarboxylic acid - Google Patents
Preparation of 2,6-naphthalene dicarboxylic acidInfo
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
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.
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)
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 |
-
1971
- 1971-09-03 JP JP6789371A patent/JPS563337B2/ja not_active Expired
-
1972
- 1972-08-31 GB GB4044572A patent/GB1384110A/en not_active Expired
- 1972-09-01 CA CA150,836A patent/CA979001A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2243158A1 (en) | 1973-03-15 |
JPS563337B2 (en) | 1981-01-24 |
DE2243158B2 (en) | 1976-12-23 |
CA979001A (en) | 1975-12-02 |
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 |