| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5202091df9de019fc995f2d266f9ecc2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C269-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C269-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C269-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 |
| filingDate |
1992-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57c68837976ad2ccd1aced06b007e7c6 |
| publicationDate |
1992-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9217442-A1 |
| titleOfInvention |
Process for the preparation of isocyanates and carbamates using a silver salt promoted hofmann rearrangement |
| abstract |
The present invention relates to a process for producing isocyanates which comprises reacting an N-halogenated amide with an organic base in an essentially water-free modified Hofmann reaction using a soluble silver salt promoter in the presence of an organic solvent. Also disclosed is a process for producing a carbamate which comprises reacting an N-halogenated amide with an organic base in an essentially water-free modified Hofmann reaction using a soluble silver salt promoter in the presence of an alcohol solvent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103193714-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103193714-A |
| priorityDate |
1991-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |