http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-327880-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0ff16e899ce32685c9600075c1cc21 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D211-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D211-14 |
| filingDate | 1966-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1967-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-327880-A1 |
| titleOfInvention | PROCEDURE FOR OBTAINING OPTICALLY ACTIVE PIPERIDINS. |
| abstract | "Procedure for obtaining optically active piperidines", characterized in that a) a mixture of diastereomeric forms of salts of a racemic 1- (β -hydroxy- or halo-ethyl) -diphenylmethyl-piperidine is separated with an antipode of an optically active acid, and one or both of the diastereomeric salts is isolated, or b) in an optically active 1 - (β R-ethyl) -diphenylmethyl-piperidine, in which R means a transformable radical in a hydroxy radical or in a halogen atom, this radical is converted to the hydroxy radical or to a halogen atom, or c) an optically active 1-vinyl-diphenylmethylpiperidine is added water or a hydrogen halide, or d) an optically active, N-unsubstituted diphenylmethylmethylpiperidine is reacted with ethylenic oxide or an ester capable of reacting ethylene glycol, or e) in a 1 - (β -hydroxy- or halogeno-ethyl) -diphenylmethyl-piperidine, optically active, which in the ring and/or ethyl chain shows a carbamyl radical or a double bond, this radical is reduced to the methyleneimino radical or to a simple link, or f) in an optically active 1-carboxymethyl diphenylmethylpiperidine, the carboxy radical is reduced to the hydroxymethyl radical, and if desired, an optically active 1 - (β -hydroxy-ethyl) -diphenylmetol-piperidine, obtained it is transformed into the corresponding β -halogen-ethyl compound, and/or an optically active salt obtained is transformed into the corresponding base or other salt, or an optically active base in its salt. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1965-06-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.