| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-716 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-31
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-716
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-00 |
| filingDate |
1985-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1988-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2db903576ea11122638d18e6a86c7100 |
| publicationDate |
1988-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4720572-A |
| titleOfInvention |
Process for the preparation of 4-acyloxy-3-oxo-butyric acid esters |
| abstract |
A process for the preparation of a 4-acyloxy-3-oxo-butyric acid ester of the formula ##STR1## in which R 1 is alkyl with up to 4 C atoms, and n R 2 is alkyl with up to 4 C atoms and optionally substituted by halogen, hydroxyl, alkoxy or phenyl, or is aryl, n which comprises reacting a 4-halogenobutyric acid ester of the formula ##STR2## in which X is chlorine or bromine, with a carboxylic acid of the formula ##STR3## in the presence of acid-trapping agent in an organic solvent at a temperature of between 0° and 170° C. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010094405-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101941941-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6121284-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019196262-A1 |
| priorityDate |
1984-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |