| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a157f5faa443ba5bb3367371f1e2a6c7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D235-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D317-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-86 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C239-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D235-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C271-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-86 |
| filingDate |
1976-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_258d116fb2aa9f4b272e17601633a96f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b55ec2be631ab763f5ea1e1f41c7feb5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d073f0fa8978f643165b01285a0c11c |
| publicationDate |
1979-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-1068717-A |
| titleOfInvention |
Process for the preparation of carbamate and urea derivatives |
| abstract |
ABSTRACT OF THE DISCLOSURE The present invention is based on the surprising recognition that on introducing phosgene into a solution which contains an organic com-pound comprising a secondary amino group and a primary amine, the mixed urea is not formed in the theoretical yield [besides the symmetrical diurea formed in a predominant amount] but particularly when carrying out the reaction under suitable conditions, the mixed ureas are forced by the yield of 80% or above. |
| priorityDate |
1975-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |