http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04154775-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b65747ed78f05dd9ebe107b50ce2855 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D315-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D315-00 |
| filingDate | 1990-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a67f04683b8f91bebac7293f7877c0d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8026cce86f9bac03ad68efd440fa326a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18bd38d634590b47b197bdfe8758176c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9507f7abca04952945499c35fd6762d1 |
| publicationDate | 1992-05-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H04154775-A |
| titleOfInvention | Production on trans-3,4-disubstituted gamma-lactone compounds |
| abstract | PURPOSE: To obtain trans-3,4-disubstituted γ-lactone compounds having a high optical purity in simple steps by using levoglucosenone as a starting substance and forming a lactone ring using the Baeyer-Villiger oxidative reaction. n CONSTITUTION: An alkyl group R 1 (R 1 is alkyl or alkenyl) is added to an enone part of levoglucosenone expressed by formula I that is a thermal decomposition product of cellulose to provide a compound expressed by formula II, which is then subjected to the Baeyer-Villiger oxidation using a peracid (e.g. peracetic acid). Thereby, a lactone ring is formed to afford a compound expressed by formula III. The OH of the resultant compound expressed by formula III is subsequently converted into a leaving group OR 2 to provide a compound expressed by formula IV. Alkylation or alkenylation is then carried out in the presence of a copper salt (e.g. copper iodide) to afford a compound expressed by formula V, which is an aromatic ingredient in whiskies, etc., and utilized as a pheromone in the insect kingdom. n COPYRIGHT: (C)1992,JPO&Japio |
| priorityDate | 1990-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.