http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-686012-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d88f19f41587ade58b7388a9fb204a53 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D213-67 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-85 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-79 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-67 |
| filingDate | 1950-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce48e0718d9c07445ce4519977d8ccf3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_23ae987737b081a697dc52c817805701 |
| publicationDate | 1953-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-686012-A |
| titleOfInvention | Improvements in or relating to the manufacture of pyridoxine |
| abstract | 2 - Methyl - 3 - hydroxy - 4 : 5 - bis (hydroxymethyl)-pyridine (pyridoxine) is obtained by treating a substance of the general formula <FORM:0686012/IV (b)/1> wherein X stands for -NH2 or a group capable of conversion into NH2 by reduction, Y stands for hydrogen or halogen and R stands for an alkyl radical such that the carbalkoxy group -COOR is capable of conversion into -CH2OH by reduction with lithium aluminium hydride, with lithium aluminium hydride so as to carry out the conversions of the substituents X-, CN-, and -COOR (and Y, if Y stands for halogen) by reduction to produce 2-methyl-3-amino - 4 - hydroxymethyl - 5 - aminomethylpyridine, which is then converted to pyridoxine or salts thereof by known methods. As starting material there may be used 2-methyl-3-nitro-4-carbethoxy-5-cyano-6-chloropyridine. The reduction with lithium aluminium hydride may be effected in anhydrous ether. |
| priorityDate | 1950-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.