http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1317957-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a7b7dc07ac3281f46f9487924a3ba0b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D237-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D491-056 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D237-28 |
| filingDate | 1988-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1993-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4cb2c71c13e63edc4326376d11cd5414 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7bbdee099615dd8c72fdc5a4433069dd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9f78177e12c7924dee685f056c586a22 |
| publicationDate | 1993-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1317957-C |
| titleOfInvention | Process for the preparation of 1-alkyl-3-carboxy-4- cinnolones |
| abstract | Abstract NOLONES. A process for the preparation of 1-alkyl-3-car-boxy-4-cinnolones of formula I I wherein R and R1 are electron donor groups and R3 is an alkyl group, starting from an amine of formula II II which is subjected to the following transformations; 1) diazotation; 2) coupling with a cyanoacetic ester; 3) alkylation of the arylhydrazone obtained in 2), 4) hydrolysis of the ester and conversion into acyl chloride; 5) intramolecular cyclization; 6) hydrolysis of the nitrile residue. |
| priorityDate | 1987-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.