http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-350039-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a50c4ffb0d271c4e901c3a053569dbd6 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-732 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01N37-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01N- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C71-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C- |
| filingDate | 1968-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1969-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-350039-A1 |
| titleOfInvention | PROCEDURE FOR THE PREPARATION OF 4,4'-DIBROMOBENZYL ACID ESTERS. |
| abstract | The invention relates to 4-41-dibromobenzylic acid esters of the general formula in which R represents the methyl, ethyl, npropyl or a butyl radical, a halogeno alkyl radical of from 2 to 4 carbon atoms, an unsubstituted or halogenated alkenyl radical of from 2 to 5 carbon atoms or an unsubstituted or halogenated alkinyl radical of from 3 to 5 carbon atoms. Compounds claimed per se are the methyl and ethyl esters. The compounds may be prepared by reacting a compound of the general formula with a compound of a general formula RY in which X and Y are radicals which, with the exception of an oxygen atom, contained in one of these symbols are split off during the reaction. The acid may be reacted with a reactive ester, preferably with a halide of an aliphatic alcohol ROH. In an example, to 4,41-dibromobenzylic acid dissolved in dimethyl formamide are added potassium hydroxide and methyl iodide and the methyl ester subsequently extracted. This can also be obtained by reacting an aqueous solution of a potassium salt of the acid with dimethyl sulphate. |
| priorityDate | 1967-02-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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