http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-453789-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c3a004434f0063e61dad1ab21d0d3d9f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-513 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-673 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-513 |
| filingDate | 1935-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1936-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-453789-A |
| titleOfInvention | A process of synthetically preparing ª‰(10)-oxycamphor |
| abstract | 10-Oxycamphor is prepared by treating a 10-halogen-camphor with an alkali metal salt of an organic acid and then saponifying the ester formed. According to the examples, 10-bromo- or chloro-camphor is heated with anhydrous potassium acetate in glacial acetic acid and the product, after extraction with ether, saponified with alcoholic casutic potash. The product, whose formula is given, is capable of oxidation by means of potassium bichromate and sulphuric acid to 10-apocamphor-1-carboxylic acid (ketopinic acid). The Specification as open to inspection under Sect. 91 also contains two examples describing the preparation of 10-oxycamphor by heating 3 : 10-dibromocamphor with anhydrous potassium acetate in glacial acetic acid, extracting the resulting 3-bromo-10-acetoxy-camphor with ether, and then effecting in either order the removal of the bromine by reduction with zinc dust and acetic acid and the saponification of the acetoxy group with alcoholic potash. It also refers to 10-apocamphor-1-aldehyde as an oxidation product of 10--oxycamphor. This subject-matter does not appear in the Specification as accepted. |
| priorityDate | 1934-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.