http://rdf.ncbi.nlm.nih.gov/pubchem/patent/YU-47119-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e019980e0d3964666d42b84f16f7fe2a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D303-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-277 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C251-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D303-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C251-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-37 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C249-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C255-53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-277 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C239-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 |
| filingDate | 1988-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82adc93c502e2a6fc8814a1b47153eaa http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0dd5cf64e84b015e6cbfb7ec889f92a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d85fd72a52d5a563788a349de460b1af |
| publicationDate | 1994-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | YU-47119-B |
| titleOfInvention | NEW PROCESS FOR THE PREPARATION OF ALPHA- (1-METHYLETHYL) -3,4-DIMETHOXYBENZENE-ACETONITRILE |
| abstract | A NEW PROCESS FOR THE PREPARATION OF ALPHA- (1-METHYLETHYL) -3,4-DIMETHOXYBENZENE-ACETONITRYL, of formula: reacted with isobutyryl-3,4-dimethoxybenzene, of formula: with alpha-halogen ester, of formula X-CH2-COOR VII in wherein X represents a halogen atom and R represents an unbranched or branched alkyl radical containing from 1 to 6 carbon atoms, in the presence of an alkaline agent selected from an alkali metal alkoxide of the formula R1O-Me + VIII in which Me + represents an alkali metal cation , and R 1 is an alkyl radical, unbranched or branched, containing from 1 to 6 carbon atoms, sodium amide or sodium hydride, optionally in the presence of a solvent selected from an aromatic hydrocarbon and an unbranched or branched alcohol, and containing from 1 to 6 carbon atoms, or mixtures thereof, for about 1 to about 24 hours, at a temperature between -25 ° C and the boiling point of the reaction mixture, to form an ester of glycidic acid, of formula wherein R has the above meaning , alkali-hydrolyzes, at a temperature between about 0 ° C and the boiling point of the reaction mixture, for about 1 to about 12 hours, to give an alkaline epoxy acid salt of formula wherein Me + has the meaning given above, which compound of formula IV decarboxylate, at a temperature between about 20 ° C and the boiling point of the mixture, for about 1 to about 16 hours, to give alpha- (1-methylethyl) -3,4-dimethoxybenzeneacetaldehyde, of formula, said aldehyde, of formula V, treated with hydroxylamine hydrochloride, at a temperature between about 0 ° C and the boiling point of the reaction mixture, for about 0.5 to about 16 hours, to give alpha- (1-methylethyl) -3,4-dimethoxybenzeneacetaldoxime, formula and said oxime of formula VI is dehydrated to give the desired nitrile of formula I. The application contains 7 further dependent claims. |
| priorityDate | 1987-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.