http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5118860-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_03627f82d4edc6567f9627df6efdde5d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-185 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-46 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B41-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C317-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C323-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1990-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_65c3bdab5be3d38e0c465ae1f7d84995 |
| publicationDate | 1992-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-5118860-A |
| titleOfInvention | Bf3 catalyzed acylation of aromatic compounds |
| abstract | In accordance with the present invention, aromatic ketones are prepared by the acylation of aromatic reactants using boron trifluoride as a catalyst and in a solvent medium comprising anhydrous liquid sulfur dioxide. The acylation proceeds in accordance with the equation I: ##STR1## wherein n ranges from 5 to 9, Ar is phenylene and n is 5, naphthalene and n is 7, or a bis phenylene radical having the structure: ##STR2## and n is 9; wherein Z is selected from the group consisting of a covalent carbon to carbon bond, O, S, SO 2 , C═O and C 1 to C 3 alkylene or alkylidene, X is selected from the group consisting of H, OH, halogen, C 1 to C 6 alkyl C 1 to C 6 alkoxy and combinations thereof, R is an alkyl group containing from 1 to about 16 carbon atoms and Y is selected from the group consisting of hydroxy, acyloxy and halogen. n The acylation process of this invention gives rise to aromatic ketones which are highly selectively acylated at the activated ring carbon and also yields a high ratio of conversion of the aromatic starting material. n The process also provides a faster rate of reaction than analogous processes and affords the opportunity to recover large quantities of the BF 3 catalyst as well as the SO 2 solvent for recycle, thus offering improved economy and efficiencies. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007135531-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7482392-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1315769-C |
| priorityDate | 1990-11-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 112.