| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_05a203d85ee01909eaf728dc16f0f6cb |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H7-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H9-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H7-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 |
| filingDate |
1980-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1981-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8b8f2fb7e83189ab2710bcf05ac39c53 |
| publicationDate |
1981-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4283340-A |
| titleOfInvention |
Ascorbic acid intermediates |
| abstract |
A synthetic route to ascorbic acid is provided in which a 3,5:4,6-protected derivative of gulonic acid is prepared from gulono-1,4-lactone. Oxidation of the derivative and hydrolysis of the resulting product affords 2-ketogulonic acid or ester thereof which can be readily converted to ascorbic acid by known methods. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007256231-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0138436-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0138436-A3 |
| priorityDate |
1977-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |