http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CH-589086-A5
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d037bc74e34c7d73dd883f208aef0518 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D237-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D487-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-502 |
| filingDate | 1974-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1977-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CH-589086-A5 |
| titleOfInvention | Phthalazino(2,3-b)phthalazine-5,12-dione prepn - from 2-benzyl-3,4-dihydro-1(2H)-phthalazinone |
| abstract | Anti-inflammatory phthalazino 2,3-b phthalazine-5(14H), 12(7H)-dione is prepd. by (a) reducing 2-benzyl-1(2H)-phthalazinone to 2-benzyl-3,4-dihydro-1(2H)-phthalazinone (pref. with Zn and acid at 50-80 degrees C); (b) reacting this with XCOY (where X and Y are halogen, lower alkoxy, vinyloxy, p-nitrophenoxy, benzyloxy, benzhydryloxy, N3,imidazolyl or s-triazolyl, or together form ethylenedioxy); and (c) cyclising the prodt. with a Lewis acid, e.g., ZnCl2, SbCl5, SbF5, AlCl3, BF3, HF, H2SO4 or H3PO4, at 0-130 degrees C. The cpd. XCOY is pref. phosgene, ethyl chloroformate or diethyl carbonate. |
| priorityDate | 1973-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 80.