http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-2011918-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-24 |
| filingDate | 1970-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-2011918-A1 |
| titleOfInvention | N-formyl-s-aralkyl-cysteines single stage prepn |
| abstract | N-Formyl-S-aralkyl-cysteines, which are intermediates for optically active cysteines (esp. penicillamine), are prepd. in a 'one-pot' reaction in which an isocyanoacetic acid ester, a metallating agent and a carbonyl cpd. are allowed to react at -80 to +80 degrees C (pref. -70 degrees to +40 degrees C) for 2-60 (pref. 5-20) mins., a molar proportion or an excess of an aralkyl mercaptan is added at 0-100 degrees C, and the reaction soln. is worked up in a conventional manner by hydrolysis and saponification to give the N-formyl-S-aralkyl-cysteine. This simple, one-stage process enables the products to be produced cheaply on a large scale. |
| priorityDate | 1970-03-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 95.