http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-992166-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D327-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D405-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D327-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D405-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-74 |
| filingDate | 1963-11-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-992166-A |
| titleOfInvention | New 5-nitro-furfurylidene derivatives |
| abstract | The invention comprises compounds of the formula <FORM:0992166/C2/1> wherein R represents a hydrogen atom or from 1 to 4 alkyl radicals, each containing up to 4 carbon atoms; and a process for their preparation comprising reacting a 4-amino-tetrahydro-1,4-thiazine-1,1-dioxide with 5-nitro-furfural, the reaction preferably being carried out in an organic solvent medium in which both starting components are soluble and in which the desired end product is insoluble. 4 - Amino - 3 - methyl - tetrahydro - 1,4 - thiazine-1,1-dioxide is prepared by reacting 2-mercapto-ethanol with propylene oxide in the presence of KOH, distilling the resulting 2 - hydroxyethyl - 2 - hydroxypropyl sulphide over p-toluene sulphonic acid or KHSO4 at atmospheric pressure to produce 2-methyl-1,4-oxathiane, oxidizing this compound with H2O2 in acetic acid, and reacting the thus obtained 2 - methyl - 1,4 - oxathiane - 4,4 - dioxide with excess hydrazine. The corresponding 2-ethyl compound is prepared in an analogous manner. Specification 889,068 is referred to. |
| priorityDate | 1962-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 40.