http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0436183-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b94baf1aad802afc19b0e63b4499b04d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-65 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-65 |
| filingDate | 1990-12-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0e98a952279ca3bb16d764bd1dd8f2b |
| publicationDate | 1991-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0436183-A1 |
| titleOfInvention | Process for the preparation of symmetrical azodinitrile dicarboxylic acids from keto acids |
| abstract | The preparation of symmetrical azodinitriles prepared from keto acids is disclosed. A keto acid of the formulan n is reacted with M(CN) x and an ammonia source to obtain an aminonitrile metal carboxylate of the formulan n The aminonitrile metal carboxylate is reacted with M₁(OCl) x with the proviso that no alcohol or surface active agent is utilized to form a metal salt of an azo compound. This metal salt is reacted with mineral acid to give the symmetrical azodinitrile compound of the formulan n R₁ is an alkyl group containing from 1 to about 12 carbon atoms and R₂ is an alkylene group containing from 1 to about 12 carbon atoms. M is a metal comprising lithium, sodium, potassium, magnesium or calcium; M₁ is a metal comprising sodium, potassium or calcium; and x is the valence of M and M₁. In other embodiments, the preparation of mixed, symmetrical azonitrile initiators and mixed azodinitrile initiators via hydrazo intermediates, prepared from keto acids and aminonitrile and keto acids and a hydrazine source, a ketone and hydrochloric acid respectively is disclosed. |
| priorityDate | 1989-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 99.