GB730608A - Process for the preparation of -amino-ª†-ketocaproic acid - Google Patents
Process for the preparation of -amino-ª†-ketocaproic acidInfo
- Publication number
- GB730608A GB730608A GB27356/52A GB2735652A GB730608A GB 730608 A GB730608 A GB 730608A GB 27356/52 A GB27356/52 A GB 27356/52A GB 2735652 A GB2735652 A GB 2735652A GB 730608 A GB730608 A GB 730608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- keto
- amino
- nitro
- caproic acid
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to e -amino-g -keto-caproic acid obtainable by hydrogenating the corresponding e -nitro-keto-caproic acid in an inert solvent in the presence of a hydrogenating catalyst such as Raney nickel or cobalt or a noble metal, e.g. platinum or palladium at room or elevated temperature. In examples: (1) the nitro-keto-caproic acid is hydrogenated using palladium-barium sulphate as catalyst and glacial acetic acid as solvent and the resulting amino-keto-acid is recovered in the form of its oxalate; (2) the hydrogenation is effected using methanol as solvent and the product is worked up to yield the free amino-keto-caproic acid and minor amounts of an unidentified amino-acid; the primary and secondary oxalates and the hydrochloride of the amino-keto acid are referred to. The free acid and its oxalate yield condensation products on heating, which are suitable for the production of adhesives and lacquers, e -Nitro-g -keto caproic acid is obtained by condensing furfural with nitromethane yielding 1-nitro-2-furyl-ethylene which is then boiled with concentrated hydrochloric acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE730608X | 1951-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB730608A true GB730608A (en) | 1955-05-25 |
Family
ID=6636897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27356/52A Expired GB730608A (en) | 1951-12-07 | 1952-10-30 | Process for the preparation of -amino-ª†-ketocaproic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB730608A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408881A2 (en) * | 1989-06-19 | 1991-01-23 | MERCK PATENT GmbH | Process for the enantioselective preparation of gamma-keto-delta-amino-acid derivatives |
-
1952
- 1952-10-30 GB GB27356/52A patent/GB730608A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408881A2 (en) * | 1989-06-19 | 1991-01-23 | MERCK PATENT GmbH | Process for the enantioselective preparation of gamma-keto-delta-amino-acid derivatives |
| EP0408881A3 (en) * | 1989-06-19 | 1992-02-26 | Merck Patent Gesellschaft Mit Beschraenkter Haftung | Process for the enantioselective preparation of gamma-keto-delta-amino-acid derivatives |
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