http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20040086390-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-122 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-017 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-04 |
| filingDate | 2003-02-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2004-10-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20040086390-A |
| titleOfInvention | Processes for the preparation of a carboxylic anhydride and use of the carboxylic anhydride as an acylation agent |
| abstract | The present invention provides a catalyst as a) a source of a Group VIII metal; b) bidentate diphosphine represented by the following formula (I); c) a process for preparing carboxylic anhydride by reacting carbon monoxide and carboxylic acid with an ethylenically unsaturated compound in the presence of a catalyst containing a complexing anion, the complexing anion being an anion of carboxylic acid:n n n Formula In n n n n n n n Wherein R 1 represents a divalent radical, which is a 2-phospha-tricyclo [3.3.1.1 {3,7}] decyl group, or a derivative thereof, which is optionally substituted with an attached person; Wherein at least one carbon atom is substituted with a heteroatom (“2-PA” group); R 2 and R 3 independently represent or combine a monovalent radical of up to 20 atoms to form a divalent radical of up to 20 atoms; R represents a divalent organic crosslinking group. The present invention also provides a process in which the carboxylic acid is prepared in situ and the use of the carboxylic anhydride as an acylating agent. |
| priorityDate | 2002-02-19^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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