http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S5798271-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-76 |
| filingDate | 1980-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7cf435d5cc3a450d1499074ddfcac74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00066061150a3da50479a1eaad73ced8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_290b2eff71739821bed5549c60eeaf69 |
| publicationDate | 1982-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S5798271-A |
| titleOfInvention | Preparation of 5-(2-cyanoethyl)-2,4-imidazolidinedione |
| abstract | PURPOSE: To prepare the titled substance in high yield, by reacting 4-oxobutyronitrile, ammonia, carbon dioxide and hydrocyanic acid, etc. in a mixed solvent composed of water and a specific amount of an aprotic polar solvent in two steps, i.e. first at low temperature, and then at high temperature. n CONSTITUTION: In the preparation of the titled substance by the BUCHERER- BERGS reaction of 4-oxobutyronitrile and/or 2-hydroxypentane dinitrile, ammonia and/or an ammonium salt, carbon dioxide and/or a carbonate, and hydrocyanic acid and/or its salt, the reaction is carried out in the presence of mixed solvent comprising water containing 15W95vol% aprotic polar solvent (e.g. sulfinyl bismethane) first at room temperature W40°C for 0.5W5hr, and then at 45W110°C. n EFFECT: The by-product can be easily and almost completely converted to the objective compound by the acid treatment after the reaction. n USE: Intermediate for glutamic acid, etc. n COPYRIGHT: (C)1982,JPO&Japio |
| priorityDate | 1980-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.