| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-55 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C59-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B53-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-72 |
| filingDate |
1992-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c45344e1d49bf082a397af1f526ca45c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_468a919b65674556efcc586780d1c2d9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c5f149edf632d56680bcc8434b503cb7 |
| publicationDate |
1993-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2085634-A1 |
| titleOfInvention |
Process for the preparation of optically active .alpha.-hydroxycarboxylic acids |
| abstract |
Process for the preparation of optically active .alpha.-hydroxycarboxylic acids A b s t r a c t The invention relates to a process for the preparation of optically active .alpha.-hydroxycarboxylic acids characterised in that carbamates are first reacted in the presence of a selective base and of a chelate-forming diamine to give a carbanion complex compound, this is than dia- or enantioselectively deprotonated, then substituted with CO2 and, as a final step, the heterocyclic protective group is eliminated. Le A 28 839 A- Foreign Countries |
| priorityDate |
1991-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |