JPS4899150A - - Google Patents
Info
- Publication number
- JPS4899150A JPS4899150A JP3255472A JP3255472A JPS4899150A JP S4899150 A JPS4899150 A JP S4899150A JP 3255472 A JP3255472 A JP 3255472A JP 3255472 A JP3255472 A JP 3255472A JP S4899150 A JPS4899150 A JP S4899150A
- Authority
- JP
- Japan
- 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.)
- Granted
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
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
-
- 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
-
- 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
- C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
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)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3255472A JPS522906B2 (it) | 1972-04-03 | 1972-04-03 | |
| US05/324,050 US3940426A (en) | 1972-04-03 | 1973-01-16 | Process for producing biphenyltetracarboxylic dianhydrides |
| DE2304551A DE2304551C2 (de) | 1972-04-03 | 1973-01-31 | Verfahren zur Isolierung von 3,3',4,4'- und 2,3,3',4'-Biphenyltetracarbonsäuredianhydrid aus einem Isomerengemisch |
| DE19732366380 DE2366380C2 (de) | 1972-04-03 | 1973-01-31 | Verfahren zur Herstellung von Biphenyltetracarbonsäure-Isomeren |
| DE2366569A DE2366569C2 (de) | 1972-04-03 | 1973-01-31 | 2,3,3',4'-Biphenyltetracarbonsäuredianhydrid |
| FR7305836A FR2178862B1 (it) | 1972-04-03 | 1973-02-19 | |
| US05/597,789 US4048197A (en) | 1972-04-03 | 1975-07-21 | 2,3,3',4'-Biphenyltetracarboxylic acid dianhydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3255472A JPS522906B2 (it) | 1972-04-03 | 1972-04-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4899150A true JPS4899150A (it) | 1973-12-15 |
| JPS522906B2 JPS522906B2 (it) | 1977-01-25 |
Family
ID=12362130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3255472A Expired JPS522906B2 (it) | 1972-04-03 | 1972-04-03 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS522906B2 (it) |
| DE (1) | DE2366380C2 (it) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5050459A (it) * | 1973-09-05 | 1975-05-06 | ||
| JPS50116457A (it) * | 1974-03-01 | 1975-09-11 | ||
| JP2006328040A (ja) * | 2005-04-28 | 2006-12-07 | Ube Ind Ltd | ２，３，３’，４’−ビフェニルテトラカルボン酸二無水物の製造方法 |
-
1972
- 1972-04-03 JP JP3255472A patent/JPS522906B2/ja not_active Expired
-
1973
- 1973-01-31 DE DE19732366380 patent/DE2366380C2/de not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5050459A (it) * | 1973-09-05 | 1975-05-06 | ||
| JPS5634025B2 (it) * | 1973-09-05 | 1981-08-07 | ||
| JPS50116457A (it) * | 1974-03-01 | 1975-09-11 | ||
| JPS5715098B2 (it) * | 1974-03-01 | 1982-03-29 | ||
| JP2006328040A (ja) * | 2005-04-28 | 2006-12-07 | Ube Ind Ltd | ２，３，３’，４’−ビフェニルテトラカルボン酸二無水物の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2366380C2 (de) | 1985-09-12 |
| JPS522906B2 (it) | 1977-01-25 |