http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-970006272-A
Outgoing Links
| Predicate | Object |
|---|---|
| filingDate | 1995-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1997-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-970006272-A |
| titleOfInvention | New manufacturing method of UV absorber |
| abstract | The present invention reacts the diaryl ketone of the general formula (II) with the cyanoacelan ester of the general formula (III) to prepare the substituted phenyl cinnamic acid ester of the structural formula (I), without using an additional organic solvent. In the presence of an organometallic catalyst selected from sodium methoxide, sodium ethoxide and sodium hydride, it is to provide a method for producing a silent compound by the banung reaction while bubbling an inert gas at a temperature of 120 ~ 170 ℃, the present invention By the method of high purity, high yield and inexpensive the target compound can be prepared.n n n n n n n n Wherein Ar is benzene, benzene substituted at 1 to 3 positions with lower alkyl having 1 to 3 carbon atoms, benzene substituted at 1 to 3 halogen, or benzene substituted at 1 to 3 positions with lower alkoxy group having 1 to 4 carbon atoms R is a linear or branched alkyl group having 1 to 17 carbon atoms. |
| priorityDate | 1995-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.