| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P3-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P3-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-375 |
| filingDate |
2001-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b4bfe74de0155363d1918a350c1642e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_264e1e7f21981ac4d599b931b506b8ed |
| publicationDate |
2003-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2003100771-A1 |
| titleOfInvention |
Method for the production of l-ascorbic acid by lactonisation of 2-keto-l-gulonic acid or s2-keto-l-gulonate esters |
| abstract |
The invention relates to a process for the preparation of L-ascorbic acid, in which free 2-keto-L-gulonic acid or C 3 -C 10 -alkyl 2-keto-L-gulonate is lactonized under acidic conditions in the presence of a water-miscible solvent and where this solvent in situ forms a solvent in which the ascorbic acid formed is poorly soluble. |
| priorityDate |
2000-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |