http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-970042466-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-58 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-58 |
| filingDate | 1995-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1997-07-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-970042466-A |
| titleOfInvention | Method for preparing phenyl propionic acid derivative |
| abstract | The present invention relates to a method for preparing a phenyl propionic acid derivative of the following structural formula (I) used for the preparation of a propene derivative used as a nonsteroidal anti-inflammatory drug, and a compound of the following structural formula (II), A bromine complex of polystyrene, such as styrene-co-4-vinylpyridine) bromine and poly (styrene-co-dibimilbenzene) bromine complex, is reacted to provide a new method for preparing the compound of formula (I).n n n (Ⅰ) (Ⅱ)n n n The method according to the present invention uses bromine (Br 2 ), which is more dangerous to use than known methods for obtaining the compound of formula (I) through operations such as Grignard reaction and ultraviolet photoreaction with 4 methyl styrene as a starting material. Instead of using it, the bromine-bonded polymer is used for easy handling and post-treatment, so that the reaction process is easy and the structural characteristics of the polystyrene bromine complex selectively introduce bromine into the compound of formula (II). It is a new and advanced way to obtain the compound of I) in high yield. |
| priorityDate | 1995-12-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 19.