http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-791328-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d202e9e866984fe229f6facc38f1d740 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D233-76 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-76 |
| filingDate | 1955-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1958-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-791328-A |
| titleOfInvention | Hydantoin derivatives |
| abstract | The invention comprises (1) 5-(g -aminobutylidene) - hydantoin and the production thereof from the corresponding halo compound (other than fluoro) and ammonia or ammonium hydroxide; (2) the catalytic hydrogenation of the product to 5-(g -aminobutyl)-hydantoin; and (3) the hydrolysis of the latter to dl-lysine with a mineral acid or an inorganic base. Examples are given of the preparation of 5-(g -aminobutylidene) - hydantoin hydrobromide, 5 - (g - aminobutyl) - hydantoin hydrobromide and dl-lysine hydrochloride, mono-picrate and di-picrate. The starting material can be made as in Specification 791,327. Suitable catalysts for the hydrogenation step are noble metals and their oxides (e.g. platinum oxide), Raney nickel and copper chromite. |
| priorityDate | 1955-01-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.