http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-644439-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/C07C233-46 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-46 |
| filingDate | 1947-10-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1950-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-644439-A |
| titleOfInvention | Process for preparation of ª‡-phenylacetamido-ª‰, ª‰-diethoxy-propionic acid |
| abstract | a - Phenylacetamido - b : b - diethoxypropionic acid is prepared by treatment of a -amino-b : b -diethoxypropionic acid with phenylacetyl chloride, preferably in the presence of an aqueous alkali, e.g. sodium bicarbonate. a -Amino-b : b -diethoxypropionic acid is prepared by hydrolysis of a -amino-b : b -diethoxypropionitrile hydrochloride with an aqueous alkaline earth metal, hydroxide, e.g. barium hydroxide, followed by precipitation of the barium, for example, with carbon dioxide. a -Amino-b : b -diethoxyethanol, which is prepared by treating glyoxal semidiethyl acetal in ether with ammonia gas, is reacted with liquid hydrogen cyanide for at least 20 hours to give a - amino - b : b - diethoxypropionitrile, which is purified via the hydrochloride. |
| priorityDate | 1946-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.