http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20000058125-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_966a6c1f382ec9bcb5e3839dfd73e5b8 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C403-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-29 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-06 |
| filingDate | 2000-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7cfd4db9bb3cc1d66387ec205dca0c3a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_11f0c540856b5803e3d9923e71a9e582 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2ae09dc978c36a98c797579fd4de4930 |
| publicationDate | 2000-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20000058125-A |
| titleOfInvention | A process of manufacturing cycloalkenylpolyene esters |
| abstract | The present invention is a process for producing the retinyl acylate of the formula (I), characterized in that the compound of formula (II) is treated with an acid anhydride or a complex of sulfur trioxide, as described in the presence of dimethylformamide as a solvent and weak base It is about:n n n n n n n n n n n n n n n n n Wheren n n R 1 is optionally substituted C 1-23 alkyl; C 2-23 alkenyl characterized by 1 to 5 double bonds; Phenyl-C 1-6 alkyl optionally substituted with aromatics; Or optionally substituted phenyl;n n n R 2 represents hydrogen or COR 1 .n n n In addition to dimethylformamide, an aprotic organic solvent may optionally be present, specifically aliphatic hydrocarbons, optionally alkyl-substituted alicyclic hydrocarbons, aromatic hydrocarbons, halogenated aliphatic hydrocarbons, nitrated aliphatic hydrocarbons, aliphatic ethers, Cyclic ethers, aliphatic nitriles, aliphatic amines, aliphatic or cycloaliphatic amides, dimethyl sulfoxide, tetramethylene sulfone, or mixtures of one or more such solvents. The product is useful as an intermediate for the preparation of compounds of the vitamin A group or in certain cases as the compound itself. |
| priorityDate | 1999-02-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.