http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-360334-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ad66884a6f2a66126d492e56e09be39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f5ba29601d7129e4fe78d82696922622 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eb6dd788f319d7ad4de48dc254d13967 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A41H43-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A41H43-00 |
| filingDate | 1931-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1931-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-360334-A |
| titleOfInvention | Manufacture of laevo-1-phenyl-2-methylamino-propan-1-ol |
| abstract | l-1-phenyl-2-methylaminopropan-1-ol (laevoephedrine) is prepared by condensing l-1-phenylpropan-1-ol-2-one with methylamine and catalytically reducing the product. According to an example, l-phenylpropanolone is shaken in ethereal solution with an aqueous solution of methylamine and the reaction mixture then treated with hydrogen in the presence of a colloidal solution of platinum. Specifications 280,574, [Class 1 (i), Chemical processes &c.], 297,385 and 313,617, [both in Class 2 (iii), Dyes &c.], are referred to.ALSO:l-1 - Phenyl - 2 - methylaminopropan - 1 - ol (l voephedrine) is prepared by condensing l-1-phenylpropan-1-ol-2-one with methylamine and simultaneously or subsequently reducing the product. The starting material may be obtained in known manner by the fermentation of a sugar solution with yeast in the presence of benzaldehyde. According to the examples, l-phenylpropanolone is (1) added to an ethereal solution of methylamine in presence of activated aluminium and water slowly run in, (2) treated with hydrogen in presence of colloidal platinum and an aqueous solution of methylamine, (3) shaken in ethereal solution with an aqueous solution of methylamine until condensation occurs and the product then hydrogenated in the presence of a colloidal solution of platinum. Specifications 280,574, 297,385, and 313,617, [all in Class 2 (iii), Dyes &c.], are referred to. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2509309-A |
| priorityDate | 1930-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.