http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4563532-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D271-113 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D413-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-113 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D413-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 |
| filingDate | 1983-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1986-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d09c0d57f340f696d9a97f2725675e2a |
| publicationDate | 1986-01-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4563532-A |
| titleOfInvention | Process for the preparation of Δ4 -1,3,4-oxadiazolin-2-one compounds |
| abstract | Optical brighteners of the formula <IMAGE> (I) wherein Y denotes a carbocyclic or heterocyclic radical, R denotes hydrogen or R1, wherein R1 is an optionally substituted alkyl, aralkyl or aryl radical, and n denotes 0 or 1 and the rings A and B can carry further substituents, are obtained in a simple manner by a process in which compounds of the formula <IMAGE> (V) are rearranged at elevated temperatures-if appropriate in the presence of acids. |
| priorityDate | 1982-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 169.