http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6420596-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate | 2000-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ed87d7b1b49865d6d602155eb5e5fff4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e6e39fcc4614986c0869848e75e80727 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31fe95c845d62c0d4ab6f784c49d530c |
| publicationDate | 2002-07-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6420596-B1 |
| titleOfInvention | Process for the selective esterification of tertiary alcohol by an acid anhydride using a reusable solid catalyst |
| abstract | This invention provides a process for the selective esterfication of a tertiary alcohol(I) by an acid anhydride(II) to produce corresponding tertiary ester(III) and carboxylic acid(V), using a reusable solid catalyst(IV) comprising one or more halides of indium, gallium, zinc and iron. The process comprises: (i) contacting a mixture of (I) and (II) in the absence or presence of a non aqueous solvent with the fine particles of (IV) in a stirred batch reactor provided with a reflux water condenser at atmospheric pressure at the reaction conditions, such that the mole ratio of (II) to (I) is in the range from about 0.1 to about 10.0; the weight ratio of (IV) to (I+II) is in the range from about 0.005 to about 0.5; the reaction temperature is below about 80° C., and the reaction period is in the range from about 0.1 h to about 50 h; (ii) removing the solid catalyst(IV) from the reaction mixture by filtration; and (iii) reusing the separated solid catalyst for subsequent batch of the process. |
| priorityDate | 2000-11-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 103.