| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D277-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-12 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06L3-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D277-64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D417-04 |
| filingDate |
1980-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9988b89d97021d50f82e6b9b00762fcd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a8a003342facfb37e300d1b2a628e18 |
| publicationDate |
1981-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0030703-A1 |
| titleOfInvention |
Process for the preparation of coumarin compounds |
| abstract |
New coumarin compounds and a process for the preparation of coumarin compounds by reacting alkyl pyruvate with salicylaldehydes and subsequent cyclization in the presence of basic compounds or by reacting the enolates of alkyl pyruvate with salicylaldehydes. The new and known end products which can be produced by the process of the invention are valuable starting materials for the production of dyes, pesticides and pharmaceuticals. They are fluorescent dyes and optical brighteners, especially for textile fibers and textile fabrics, e.g. made of cotton or polyester fibers, inks and inks. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9617268-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-RE47689-E
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2797592-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104244944-A |
| priorityDate |
1979-12-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |