http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4026885-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79751aeaa9923745648e5ae7d9c35782 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B26-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B44-005 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B26-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B26-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B44-00 |
| filingDate | 1976-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1977-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_207e76e19daeb86b09271efcdb90231a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac9011d7fac3ca69728abef7a3f4748a |
| publicationDate | 1977-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4026885-A |
| titleOfInvention | Process for the manufacture of cationic hydrazone dyes |
| abstract | A process for the manufacture of dyes of the formula ##STR1## WHEREIN EACH OF R 1 and R 2 represents a methyl or ethyl radical, n is 1 or 2, X - is the charge equivalent of an anion and B represents a divalent radical which completes the ring a to form a pyridinium or quinolinium ring which is unsubstituted or substituted by chlorine or methyl, and the ring b is unsubstituted or substituted by low molecular alkyl or alkoxy or by halogen, which process comprises treating a compound of the formula ##STR2## WHEREIN R 1 , n, X - , B, a and b are as defined in formula (1) and m is 1 or 2, in aqueous medium at a pH of 12 or above, with dimethyl or diethyl sulphate, with the proviso that if m=1, at least 2 equivalents of dimethyl or diethyl sulphate are used. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4372886-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7091358-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4349670-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4281112-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004158937-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4310664-A |
| priorityDate | 1975-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 89.