http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2189514-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e635da461458e15b777cf751164d838f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-757 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N43-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-757 |
| filingDate | 1996-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_03502b3b7a7e3ead34e1f677e45b462a |
| publicationDate | 2006-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2189514-C |
| titleOfInvention | Process for chroman carboxylates |
| abstract | This invention relates to an improved process for the preparation of 5-methylchroman-6-carboxylic acid, a useful intermediate in the preparation of chroman-containing diacylhydrazines which are useful as insecticides, by reacting a Hagemann's ester with a propargyl derivative in the presence of a base and a solvent to produce a propargyl ether, rearranging the propargyl ether by application of heat with a suitable catalyst being present, with or without a solvent, to produce a cyclic ether type compound and isomerizing the cyclic ether type compound with a catalyst in a suitable solvent to produce a chroman ester. The propargyl ethers and the cyclic ether type compounds produced by the process of the present invention are new. |
| priorityDate | 1995-11-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 91.