http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-218893-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fab5a78161702097f97524ce6e5cdcd7 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D407-06 |
| filingDate | 1983-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_164833f0725fde828bf7eaf807eeef2b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0b1a530a0f5f59b8716eeae21bdd2d3 |
| publicationDate | 1985-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-218893-A1 |
| titleOfInvention | PROCESS FOR PREPARING 6-METHYL-3 ((4'-HYDROXY-6'-METHYL-2'-OXO-2'H-PYRAM-3'-YL) METHYLENYL) -2,3,4 H-PYRAN-2, 4-DION |
| abstract | It is a technologically simple, based on readily accessible starting materials process for the preparation of 6-methyl-3 ((4-hydroxy-6-methyl-2-oxo-2H-pyran-3-yl) methylenyl) -2,3,4H -pyran-2,4-dione, an intermediate for the preparation of dyes and pharmacologically active compounds. Triacetic acid lactone is reacted with ortho-ethylureas triethyl ester in an organic solvent in the presence of a secondary or tertiary amine. |
| priorityDate | 1983-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.