http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0010256-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1863 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-04 |
| filingDate | 1979-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1982-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0010256-B1 |
| titleOfInvention | Process for preparing symmetric 1,3-disubstituted ureas |
| abstract | 1. A process for the preparation of a symmetrical 1,3-disubstituted urea of the formula R-HN-CO-NH-R where R is unbranched or branched alkyl of 1 to 20 carbon atoms, which may be monosubstituted or polysubstited by phenyl or phenoxy, or is unbranched or branched alkoxyalkyl of 2 to 20 carbon atoms or is monocycloalkyl of 3 to 8 carbon atoms or is bicycloalkyl of 6 to 12 carbon atoms, by reacting urea with an amine of the formula RNH2 where R has the above meanings, wherein urea and an amine are reacted in the molar ratio of from 1:2.2 to 1:6 in a reacted fitted with a column, at between 150 and 250 degrees C under a pressure of between 10 and 60 bar, and the resulting ammonia, together with any unconverted amine, is taken off at the top of the column. |
| priorityDate | 1978-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 164.