http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10143178-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4c047a2764bae145e2e47a26a312f621 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-32 |
| filingDate | 2001-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bcc5ca01e65d40bd4f245a771cfe5ef3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6759bd7ad58e60cdd5feaef982eee580 |
| publicationDate | 2003-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-10143178-A1 |
| titleOfInvention | Process for the preparation of carboxylic acid esters |
| abstract | A new process is described for the preparation of alpha-halogen-substituted carboxylic acid esters, for example HCF¶2¶ (C (O) OR). Corresponding malonic diesters are transesterified and decarboxylated with a carboxylic acid, for example trifluoroacetic acid, in the presence of a catalyst, in particular an "onium" salt of a carboxylic acid or an effective amount of a proton-releasing acid, preferably a sulfonic acid such as alkyl or aryl sulfonic acid, or a mineral acid. The process is suitably carried out anhydrous. The advantage of the method is that it is simple to carry out. Is esterified with a sufficiently active carboxylic acid, e.g. B. with trifluoroacetic acid, the presence of an additional catalyst is unnecessary. |
| priorityDate | 2001-09-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 67.