http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100549354-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-38 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D295-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C219-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-66 |
| filingDate | 1998-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2006-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2006-04-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100549354-B1 |
| titleOfInvention | Method of Purifying Ketosan |
| abstract | The present invention includes the steps of slurrying keto acid with an alcohol solvent, maintaining the slurry at elevated temperature until the rhodamine impurities are dissolved in a sealed container, cooling and separating the pure keto acid by filtration. It relates to a method for purifying keto acid of the formula (1).n n n Formula 1n n n n n n n n In Formula 1 above,n n n R 1 and R 2 independently of one another are straight or branched chain alkyl of 1 to 18 carbon atoms, cycloalkyl or phenyl of 4 to 8 carbon atoms (both of which are halogen atoms and alkyl of 1 to 4 carbon atoms, aralkyl of 7 to 10 carbon atoms, 2 carbon atoms); Or one or more substituents selected from the group consisting of alkoxyalkyl, tetrahydrofuryl alkyl, alkylcarboxy alkyl, alkyl carboxy benzyl of from 20 to 20), orn n n One of R1 and R2 is hydrogen,n n n R1 and R2 may form a heterocyclic ring together with adjacent nitrogen atoms. |
| priorityDate | 1997-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 44.