http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1154278-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc2f7134efa50484bb359fda73782848 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1809 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18 |
| filingDate | 1967-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1154278-A |
| titleOfInvention | Process for the manufacture of N-Aryl-N',N'-Dialkylureas |
| abstract | 1,154,278. Substituted ureas. CIBA Ltd. 2 May, 1967 [14 May, 1966], No. 20264/67. Heading C2C. N-Aryl-N<SP>1</SP>,N<SP>1</SP>-dialkyl ureas are obtained by adding an inorganic acid, e.g. hydrochloric acid, to a suspension of an arylamine and an alkali metal cyanate in the smallest possible amount of water and, if necessary, an organic solvent miscible with water, isolating the N-arylurea formed, dissolving it in an organic solvent and adding a dialkylamine to the resulting solution, the rate of addition being controlled so that it is proportional to the decreasing rate of conversion. The acid is added in an amount equivalent to that of the alkali metal cyanate and in such a manner that no free excess cyanic acid is formed. Examples are given of the preparation of N-p-chlorophenoxyphenyl-N<SP>1</SP>,N<SP>1</SP>-dimethylurea and N-m-trifluoromethylphenyl, -N<SP>1</SP>,N<SP>1</SP>- dimethylurea. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0402020-A1 |
| priorityDate | 1966-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.