GB601184A - Improvements in or relating to the preparation of alkyl acylaminocyanoacetates - Google Patents
Improvements in or relating to the preparation of alkyl acylaminocyanoacetatesInfo
- Publication number
- GB601184A GB601184A GB26667/45A GB2666745A GB601184A GB 601184 A GB601184 A GB 601184A GB 26667/45 A GB26667/45 A GB 26667/45A GB 2666745 A GB2666745 A GB 2666745A GB 601184 A GB601184 A GB 601184A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkyl
- ethyl
- hydrosulphite
- sodium
- anhydride
- 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
- C07C255/00—Carboxylic acid nitriles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
Alkyl acyl-aminocyanoacetates are obtained by reacting an alkyl isonitrosocyanoacetate with a cold aqueous solution of a water-soluble metal hydrosulphite, e.g. sodium hydrosulphite and an acylating agent such as a lower aliphatic acid anhydride, e.g. acetic or propionic anhydride. The alkyl isonitrosocyanoacetates are obtained by nitrosating alkyl cyanoacetates and may be used without isolation from the resulting reaction mixture. In examples: (1) ethyl isonitrosocyanoacetate is treated with acetic anhydride and sodium hydrosulphite at 0-10 DEG C. to produce ethyl acetylaminocyanoacetate; (2) ethyl cyanoacetate is treated with sodium nitrite followed by treatment with acetic anhydride and sodium hydrosulphite to produce ethyl acetylaminocyanoacetate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US601184XA | 1944-12-19 | 1944-12-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB601184A true GB601184A (en) | 1948-04-29 |
Family
ID=22027479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26667/45A Expired GB601184A (en) | 1944-12-19 | 1945-10-12 | Improvements in or relating to the preparation of alkyl acylaminocyanoacetates |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB601184A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2338254A1 (en) * | 1976-01-13 | 1977-08-12 | Lonza Ag | METHOD FOR PREPARING ETHYL AMINOCYANOACETATE |
US4565832A (en) * | 1984-02-08 | 1986-01-21 | Japan Exlan Company Limited | Process for producing packing material for use in liquid chromatography |
-
1945
- 1945-10-12 GB GB26667/45A patent/GB601184A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2338254A1 (en) * | 1976-01-13 | 1977-08-12 | Lonza Ag | METHOD FOR PREPARING ETHYL AMINOCYANOACETATE |
US4565832A (en) * | 1984-02-08 | 1986-01-21 | Japan Exlan Company Limited | Process for producing packing material for use in liquid chromatography |
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