http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S59152347-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cff62ee19588f053fe1f229df4e6c756 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-533 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-593 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-612 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1983-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3860ebfafca002058f98b1772db61c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0a5fcdaa4e025a25145f439ed199b77 |
| publicationDate | 1984-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S59152347-A |
| titleOfInvention | Selective preparation of carboxylic acid ester |
| abstract | PURPOSE: To obtain the titled compound in high conversion and selectivity, by carrying out the esterification reaction with an alcohol in a reaction system containing conjugated carboxylic acid and non-conjugated carboxylic acid in the presence of I 2 and water, thereby esterifying only the nonconjugated carboxylic acid. n CONSTITUTION: A compound of formula I (R is group of formula II, -CH=CH-, formula III, etc.; n is 1W20) containing conjugated and non-conjugated carboxylic acid groups in one molecule, e.g. 2-methyleneglutaric acid, etc., or a mixture containing both conjugated carboxylic acid and non-conjugated carboxylic acid as separate compounds, e.g. the acids of formula IV (R 1 is H, alkyl, alkenyl, aralkyl, etc.) and formula V (R 2 =R 1 ) such as n-hexanoic acid and n-hexenoic acid, is esterified with an alcohol of formula R 3 -OH (R 3 is alkyl, alkenyl or aralkyl), e.g. methanol, in the presence of I 2 and water at -50W+80°C for 0.5W 240hr to obtain the objective compound of formula VI (X is group of formula VIIor R 2 ). n USE: Raw material of polymers, etc. n COPYRIGHT: (C)1984,JPO&Japio |
| priorityDate | 1983-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.