http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-227700-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13356924224cc58b2e030fbc78804d0f |
| filingDate | 1984-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92b73a6a5c8dd6cc9a1e4ed45f798b47 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7330e7d2c2f20abf5eb9079be726835c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f12b2611b6e73d32d968e4058abd558 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd4ec30af9893924a6ae536dc86ea3c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45f5b22dcfc2556ab0f47a69366dd323 |
| publicationDate | 1985-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-227700-A1 |
| titleOfInvention | PROCESS FOR THE PREPARATION OF N, N-DIALKYL-N'-ARYLHARN MATERIALS |
| abstract | The aim of the invention is an improved process for the economical production of N, N-dialkyl-N-aryl ureas, which works without phosgene and the N, N-dialkyl-N-aryl ureas from nitroaromatics or nitroaromatic-arylamine mixtures, dialkylamines and carbon monoxide in one single-stage process in the presence of simple, cheaper sulfur-based catalysts. For this purpose, nitroaromatics or nitroaromatic-arylamine mixtures are reacted with dialkylamines and carbon monoxide in the presence of catalytic amounts of sulfur and / or sulfur compounds and at least one oxygen-containing vanadium compound having at least one direct oxygen-vanadium bond. |
| priorityDate | 1984-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 122.