http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-728990-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5d9f3ca41550d315642580237250c5b0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B2200-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K31-59 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K31-59 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-38 |
| filingDate | 1953-03-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1955-04-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-728990-A |
| titleOfInvention | Crystallizable pentaene aldehyde complexes |
| abstract | The invention comprises a crystallizable complex of a compound of the formula <FORM:0728990/IV (b)/1> where A is either an oxygen or a nitrogen group, B is either a hydrogen atom or an alkyl group, n is an integer equal to the valency of A minus one, and each of the symbols Y and Z represents a hydrogen atom, a halogen atom, or an alkyl group, at least one of B, Y and Z being other than a hydrogen atom; and a 2,6-trans, trans pentaene aldehyde having the formula <FORM:0728990/IV (b)/2> or <FORM:0728990/IV (b)/3> and the process of separating a trans, trans pentaenal having the vitamin A carbon skeleton from a mixture with its isomers by the formation of said complex. As complex-forming compounds there may be used 2-methyl-, -ethyl-, or -t-amyl-hydroquinone; 2,5-di-methyl, di-ethyl-, or di-t-amyl-hydroquinone; 2,5-dichlorohydroquinone; p-methoxy, -ethoxy- or butoxy phenol; o-methyl-p-methoxy phenol; p-dimethylamino, and -diethylaminophenol; and o-methyl-p-dimethyl aminophenol. The separation of the complex can be effected by standard procedures such as solvent partition or crystallization. |
| priorityDate | 1952-03-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 33.