| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0d78cd2835221849f6a74e6349185819 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B35-376 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C201-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C205-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 |
| filingDate |
1992-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b4bf4eac23203f38fb6deb13238c1875 |
| publicationDate |
1992-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0518493-A1 |
| titleOfInvention |
Preparation of polycyclic dyes |
| abstract |
A process for the preparation of a polycyclic dye of the Formula (1):n n by reacting a ketal ester of the Formula (2):n n with a benzofuranone of the Formula (3):n n wherein:n Ring A is unsubstituted or is substituted by from one to three groups; Ring B is unsubstituted, apart from the nitro group, or is substituted by one or two additional groups; each R is independently alkyl. n The polycyclic dyes described are useful for the coloration of synthetic textile materials especially polyesters. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5663371-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0569138-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9728221-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9412577-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9412577-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5304659-A |
| priorityDate |
1991-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |