| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d1bd10f13ffe612eefce244f59c10e6f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D263-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D263-32 |
| filingDate |
2001-10-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9fab012f3a727b184a1c49cc684b98f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3681c3babf83fcb96529092882d8788
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2888d6a388982043e62d004a9092e590
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e4bcd98eb08474b09e64aa17986d38c |
| publicationDate |
2002-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20020034896-A |
| titleOfInvention |
Process for the preparation of n-carboxyanhydrides |
| abstract |
The invention is characterized in that the reaction is carried out at least in part in the presence of an unsaturated organic compound having at least one ethylenic double bond and one of the carbons of the at least one ethylenic double bond is completely substituted with a substituent other than a halogen atom. And a process for reacting a corresponding amino acid in a solvent medium with phosgene, diphosgene and / or triphosgene to produce N-carboxylic anhydride.n n n Thus, N-carboxylic anhydrides are obtained with better yields and improved purity. |
| priorityDate |
2000-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |