http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CH-496677-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1827 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-64 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18 |
| filingDate | 1966-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_132ce362b139f2ede12d5e1bdb1db7e9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f7b9be4596577a25bf15a824a83e01eb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0336d5728a53f9743746c7efd1d8016a |
| publicationDate | 1970-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CH-496677-A |
| titleOfInvention | Process for the preparation of N-phenyl-N'-alkoxy-N'-alkylureas |
| abstract | Prodn. of N-phenyl-N'-alkoxy-N'-alkyl ureas (I):- (R')OR Ar = opt. substd. phenyl R' and R = alkyl. (I) are plant protection agents. The first stage of the reaction is carried out using 5-30%, pref. 10-30% aqs. hydroxylamine in the presence of a water immiscible solvent such as benzene, CHCl3 or diethylether. The hydroxyamine is pref. used in excess with respect to the isocyanate. Reaction temps. are in the range of 0-25 deg.C and when the first stage is complete, the organic layer is separated off with the impurities. The second (alkylation) stage is carried out by usual methods e.g. with alkyl sulphates, alkyl halides or alkyl sulphonates. |
| priorityDate | 1965-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 65.