http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0170965-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-56 |
| filingDate | 1985-07-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1989-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1989-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0170965-B1 |
| titleOfInvention | Process for the simultaneous preparation of carboxylic-acid anhydrides and, optionally, carboxylic-acid esters |
| abstract | 1. A process for the common preparation of carboxylic acids and carboxylic anhydrides and, if appropriate, carboxylic acid esters of the general formulae RCOOH, RCOOCOR and RCOOR respectively, by reacting a dialkyl ether of the general formula ROR and an alcohol of the general formula ROH with carbon monoxide, optionally containing up to 10% by volume of hydrogen, in the presence of a catalyst system comprising carbonyl complexes of noble metals of group VIII of the Periodic Table ; an alkali metal iodide, organophosphonium iodide or organoammonium iodide ; an alkyl iodide of the general formula RI and, if appropriate, compounds of carbonyl forming non-noble metals of groups IV, V, VI, VII or VIII of the Periodic Table, where R in each case denotes the same alkyl radical having 1 to 4 carbon atoms, which comprises employing the dialkyl ether and the alcohol in the molar ratio 9 : 1 to 1 : 9 and carrying out the reaction under anhydrous conditions at temperatures of from 50 to 250 degrees C and pressures of from 0.1 to 120 bar. |
| priorityDate | 1984-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.