GB1230320A - - Google Patents
Info
- Publication number
- GB1230320A GB1230320A GB1230320DA GB1230320A GB 1230320 A GB1230320 A GB 1230320A GB 1230320D A GB1230320D A GB 1230320DA GB 1230320 A GB1230320 A GB 1230320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dialkyl
- dec
- oxygen
- acid
- present
- 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
- C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
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)
Abstract
1,230,320. 2,2 - Dialkyl glutaric acid. DYNAMIT NOBEL A.G. 1 Dec., 1969 [2 Dec., 1968], No. 58638/69. Heading C2C. A 2,2 - dialkyl glutaric acid is prepared by oxidizing a 2,2 - dialkyl - 4 - cyanobutyraldehyde with nitric acid in the presence of oxygen but in the absence of sulphuric acid. A catalyst such as metallic copper and ammonium vanadate may be present and the oxygen may be present as air. Examples describe the preparation of 2,2 - dimethyl, and 2 - ethyl - 2 - butyl-4- cyanobutyraldehydes.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681812134 DE1812134A1 (en) | 1968-12-02 | 1968-12-02 | Process for the preparation of 2,2-dialkylglutaric acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1230320A true GB1230320A (en) | 1971-04-28 |
Family
ID=5714941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1230320D Expired GB1230320A (en) | 1968-12-02 | 1969-12-01 |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT291963B (en) |
| BE (1) | BE742378A (en) |
| DE (1) | DE1812134A1 (en) |
| FR (1) | FR2027564A1 (en) |
| GB (1) | GB1230320A (en) |
| NL (1) | NL6918016A (en) |
-
1968
- 1968-12-02 DE DE19681812134 patent/DE1812134A1/en active Pending
-
1969
- 1969-11-27 FR FR6940906A patent/FR2027564A1/en not_active Withdrawn
- 1969-11-28 BE BE742378D patent/BE742378A/xx unknown
- 1969-12-01 AT AT1120469A patent/AT291963B/en not_active IP Right Cessation
- 1969-12-01 GB GB1230320D patent/GB1230320A/en not_active Expired
- 1969-12-01 NL NL6918016A patent/NL6918016A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT291963B (en) | 1971-08-10 |
| FR2027564A1 (en) | 1970-10-02 |
| NL6918016A (en) | 1970-06-04 |
| BE742378A (en) | 1970-05-04 |
| DE1812134A1 (en) | 1970-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |