http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2162850-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_780939ce53d14aacc0cbbbcc537b687c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D451-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D451-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D451-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D451-14 |
| filingDate | 1996-04-29^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-02-10^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4962dd1beabcc57672e0acce0d0829aa |
| publicationDate | 2001-02-10^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2162850-C2 |
| titleOfInvention | Method of preparing pure enantiomers of tropic acid esters (+) or (-) with amino alcohols |
| abstract | FIELD: chemical industry. SUBSTANCE: described is method of preparing pure enantiomers of tropic acid esters (+) and (-) with amino alcohols of formula I: wherein Q is R is branched alkyl having 1-4 carbon atoms. Method comprises (a) alkylating suitable optically active tropic acid, (b) converting the resulting O-acetyltropic acid into acid chloride thereof using thionyl chloride, (c) reacting the resulting acid chloride with methane sulfonate of amino alcohol of general formula I in inert solvent at room temperature, (d) deacetylating the resulting compound by using strong acid and (e) isolating the resulting optically active tropic acid ester with purity of 99.8% and content of one of enantiomers of higher than 99%. EFFECT: efficient preparation method. 4 cl, 2 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EA-009808-B1 |
| priorityDate | 1995-04-28^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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