http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-979295-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ec035b62b836fc6bb889bb726f97f6a7 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-707 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23L27-203 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-747 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-707 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-747 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23L27-20 |
| filingDate | 1960-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e90d5ef9674990a850e6136e6e7d02a2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_898c6d2376fe6824f3079e3650631644 |
| publicationDate | 1965-01-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-979295-A |
| titleOfInvention | The preparation of cyclic diketones |
| abstract | A cyclic diketone is made by reacting glyceraldehyde, or any compound capable of giving rise to glyceraldehyde in the presence of alkali, with a ketone containing the group -CO.CH2- in the presence of an alkali catalyst and obtaining the cyclic diketone from the reaction product. Instead of glyceraldehyde there may be used glycidaldehyde or carbohydrates such as glucose. Examples of ketones are diethyl, ethyl propyl, ethyl isoamyl, and methyl ethyl ketones or acetone. The alkali catalyst may be an alkali metal hydroxide. The reaction is best effected in the presence of 20 to 200% by weight of water based on the other reactants. Except when using glycidaldehyde, the reaction mixture is preferably refluxed. The product may be recovered by saturating the reaction mixture with an inorganic salt, the unwanted by-product extracted with a solvent, the aqueous layer is acidified and the product is extracted with a solvent (e.g. ether or benzene). Examples describe the preparation of 3 (or 5)-methylcyclopent-2-en-2-ol-1-one. |
| priorityDate | 1960-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.