http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SK-280711-B6
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_676f7a8d936a115d30950a8aa998cc55 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-38 |
| filingDate | 1993-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca2bdd5b5fc594c2aad73bda90b1c360 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1474fbb09698d27ea843395d64557a8b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_586de33d614e789d18a361059ea32dc4 |
| publicationDate | 2000-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SK-280711-B6 |
| titleOfInvention | METHOD OF PRODUCTION OF N-ALKYL-N'-PHENYL-P-PHENYLENEIDIAMINE AL |
| abstract | There is disclosed a preparation of the general formula (I) compounds in which R is an C3-C18 alkyl group or cyclohexyl based on at least one primary intermediate selected from the group containing 4-nitrodiphenylamine, 4-nitrozodiphenylamine, salts of 4-nitrozodiphenylamine which is subjected to an alk. reduction to afford 4-aminodiphenylamine where it is further subjected to an alk. reduction with C3-C18 carbonyl compounds or is subjected to an alk. condensation with C3-C18 alcohol or cyclohexanol. Said primary intermediate containing nitro- and/or nitrozo- groups is reduced by carbonisation with gas containing carbon monooxide in the presence of water in an overquivalent amount effected with sulphur or sulphur compound having a molar weight between 34 and 90 g. mol-1 in the amount ranging from 0.1 to 10 wt.%, relative to the amount of nitro- and/or nitrozo compound, at a temperature ranging from 70 to 200 degree Celsius and pressure from 1 to 5 MPa, wherein 4-aminodiphenylamine thus obtained is condensed at a temperature ranging from 180 to 250 degree Celsius with C3 - C18 alcohol in the presence of alkaline hydroxide till a desired compound is obtained. |
| priorityDate | 1993-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 101.