http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-906803-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_315d611c240458b1308de8455144105a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D487-04 |
| filingDate | 1958-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3d24cdf456027995e392c541efbfb667 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cce5504c82f5225df5bb952a0e73d4d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_923bf6b5f705525fa33090d48afdec86 |
| publicationDate | 1962-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-906803-A |
| titleOfInvention | Improvements in or relating to pyrroline compounds |
| abstract | The invention comprises hydroxypyrrolines of formula <FORM:0906803/IV (b)/1> where R1, R2, R3 and R6 are each hydrogen or alkyl and R4 and R5 are alkyl. They are prepared by heating a pyrroline N-oxide of formula <FORM:0906803/IV (b)/2> with acetic anhydride, distilling off excess anhydride, and boiling the residue with an aqueous non-oxidising mineral acid, e.g. HCl, H2SO4. Starting materials prepared in examples are: 2,3,5,5-tetramethyl-, 2,5,5-trimethyl-, and 2,4,4,5,5-pentamethyl-D 1-pyrroline-1-oxide by the reduction with zinc and aqueous ammonium chloride of 3,5-dimethyl-, 5-methyl-and 4,4,5-trimethyl-5-nitro-2-hexanone respectively; the nitrohexanones are obtained by refluxing in the presence of diethylamine, 2-nitropropane with methyl isopropenyl ketone, methyl vinyl ketone and mesityl oxide respectively. Specifications 906,802 and 906,805 are referred to. |
| priorityDate | 1958-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.