http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9408951-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a22da5b7dd6ed60a21538e5edb23e051 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-065 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-04 |
| filingDate | 1993-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b1b599f414c2bd1496ce3a01877cd46d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_096fa39ad6349c1996471abf2c809382 |
| publicationDate | 1994-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-9408951-A1 |
| titleOfInvention | Process for preparing isocyanates from primary amines, carbon dioxide and a dehydrating agent |
| abstract | A process for preparing isocyanates comprising (a) contacting carbon dioxide and a primary amine in the presence of an aprotic organic solvent and a phosphazene compound or a mixture of a phosphazene compound and an organic, nitrogenous base selected from the group consisting of guanidine compounds, amidine compounds, tertiary amines, pyridine and mixtures thereof to produce the corresponding ammonium carbamate salt, and (b) reacting the ammonium carbamate salt with an electrophilic or oxophilic dehydrating agent to produce the corresponding isocyanate. A second embodiment comprises recovering the ammonium carbamate salt of step (a) prior to reacting the ammonium carbamate salt with an electrophilic or oxophilic dehydrating agent in the presence of an aprotic organic solvent and a phosphazene compound or a mixture of a phosphazene compound and an organic, nitrogenous base selected from the group consisting of guanidine compounds, amidine compounds, tertiary amines, pyridine and mixtures thereof. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7189849-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6204382-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5792865-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5792864-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5641885-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10729741-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6878844-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6613936-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0008025-A1 |
| priorityDate | 1992-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 307.