| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C215-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C215-08 |
| filingDate |
1971-12-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1978-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1978-03-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-RE29588-E |
| titleOfInvention |
Preparation of d-2-amino-1-butanol salts |
| abstract |
A racemic mixture of dl-2-amino-1-butanol is resolved with separation of the d-2-amino-1-butanol by crystallizing as a salt with L(+)-tartaric acid from an essentially anhydrous solution in ethanol or methanol. The salt is decomposed with calcium hydroxide to yield the d-2-amino-1-butanol. Water may be added to the residual anhydrous solution to separate the l-2-amino-1-butanol. Other listed volatile solvents may be present in the anhydrous ethanol or methanol without inhibiting the sharp separation. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011118307-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7884097-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8198303-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7842729-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7456222-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009281054-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009192173-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8268894-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010273826-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005113574-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8202910-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006020041-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7652039-B2 |
| priorityDate |
1966-09-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |