http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2004106320-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-935 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-935 |
| filingDate | 2004-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2006-07-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2004106320-A1 |
| titleOfInvention | Process for producing optically active lactones |
| abstract | A hydroxycarboxylic acid ester (A) obtained by reaction of a racemic lactone with an alcohol is converted into 1-alkoxybicyclo [3.3.0] -2-oxaoctane represented by the formula [1] and the formula [2 And 1-hydroxybicyclo [3.3.0] -2-oxaoctane represented by the formula or bicyclo [3.3.0] -2-oxa-1-octene represented by the formula [3] A diastereomer mixture (B), and the diastereomer mixture (B) is separated into each diastereomer, and then at least one of the separated diastereomers is decomposed into a hydroxycarboxylic acid ester (C). A method for producing an optically active lactone by converting the hydroxycarboxylic acid ester (C) into a ring-closing reaction to form an R- or S-lactone. R-form and S-form of lactones useful as a fragrance can be efficiently obtained. |
| priorityDate | 2003-05-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 261.