http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H11319568-A
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_129e393582e6bdf4029baf2206522f45 |
classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B41-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J29-18 |
filingDate | 1998-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4306214281645c6ce3c3614b81b47449 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93c35110a6e4db6dcae44e3e89a0c938 |
publicationDate | 1999-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | JP-H11319568-A |
titleOfInvention | Catalyst for producing acyl-substituted aromatic compound and method for producing acyl-substituted aromatic compound |
abstract | PROBLEM TO BE SOLVED: To provide a conventional method for producing an acyl group-substituted aromatic ketone using a Friedel-Crafts catalyst, which generally requires a stoichiometric or higher stoichiometry. There are many operational and environmental problems to be solved, such as the generation of a large amount of waste such as hydrochloric acid due to hydrolysis during isolation. In addition, in the acylation reaction using zeolite, which is considered as an alternative method, the catalyst activity is greatly reduced with time, and there is a problem in industrialization. SOLUTION: When an aromatic compound and a carboxylic acid or a derivative thereof are equilibrated with pyridine at 250 ° C., Relative intensity of the absorption based on pyridine adsorption to Bronsted acid sites in the infrared absorption spectrum of pyridine absorption based on adsorption to (1543Cm -1 vicinity) and Lewis acid (1454Cm around -1), is 10 or more The reaction is carried out in the presence of an acid-type zeolite-containing catalyst. |
isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008503431-A |
priorityDate | 1998-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 499.