GB975874A - A process for the manufacture of aminomethylene-malononitrile - Google Patents
A process for the manufacture of aminomethylene-malononitrileInfo
- Publication number
- GB975874A GB975874A GB1895163A GB1895163A GB975874A GB 975874 A GB975874 A GB 975874A GB 1895163 A GB1895163 A GB 1895163A GB 1895163 A GB1895163 A GB 1895163A GB 975874 A GB975874 A GB 975874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- malononitrile
- ammonia
- aminomethylene
- reaction
- added
- 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
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aminomethylene-malononitrile is prepared by reacting formamide with malononitrile in the presence of dimethyl sulphate. The reaction is preferably carried out in an inert solvent, e.g. hydrocarbons and ethers, at temperatures from about 40 DEG C. to 70 DEG C. using a molar ratio of formamide to both the dimethyl sulphate and the malononitrile of at least 2:1. The reaction mixture after the reaction has finished is preferably treated with ammonia. The ammonia can be added in any form; for example, a methanolic ammonia solution or pure liquid ammonia can be added. Alternatively, any solvents present are removed, the residue dissolved in another solvent and gaseous ammonia passed into the resulting solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19467362A | 1962-05-14 | 1962-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975874A true GB975874A (en) | 1964-11-18 |
Family
ID=22718475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1895163A Expired GB975874A (en) | 1962-05-14 | 1963-05-14 | A process for the manufacture of aminomethylene-malononitrile |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE632241A (en) |
| CH (1) | CH426772A (en) |
| DK (1) | DK107157C (en) |
| GB (1) | GB975874A (en) |
-
1963
- 1963-04-17 CH CH477563A patent/CH426772A/en unknown
- 1963-04-26 DK DK635763A patent/DK107157C/en active
- 1963-05-13 BE BE632241A patent/BE632241A/en unknown
- 1963-05-14 GB GB1895163A patent/GB975874A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH426772A (en) | 1966-12-31 |
| DK107157C (en) | 1967-05-01 |
| BE632241A (en) | 1963-11-18 |
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