http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113831255-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C237-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-24 |
| filingDate | 2021-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113831255-B |
| titleOfInvention | Preparation method of 2-amino malonamide |
| abstract | The invention relates to a preparation method of chemicals, in particular to a preparation method of 2-amino malonamide. The synthesis method of the 2-amino malonamide provided by the application is characterized in that a solution of diethyl 2-aminomalonate hydrochloride is dripped into ammonia water, and the reaction temperature is controlled below 10 ℃; and after the reaction is finished, crystallizing to obtain a solid, namely the 2-amino malonamide. The synthesis method has short production period and is beneficial to reducing the production cost; only two steps of dripping and crystallization are needed to complete, and the operation is simple; and the whole process only needs one reaction container, and the reaction container does not need to be replaced in the middle, thereby improving the production efficiency. The purity of the prepared 2-amino malonamide is up to more than 99.5 percent, and the yield of the prepared 2-amino malonic acid diethyl ester hydrochloride is up to more than 99.0 percent. |
| priorityDate | 2021-11-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.