| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-296
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-786
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-298
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-747
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-46 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-747
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-786 |
| filingDate |
2010-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5f5836ccadb642b6de41803620a5d415
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e7735e819d358d780736f204ddb26984 |
| publicationDate |
2011-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20110122749-A |
| titleOfInvention |
Process for preparing 3,4 'dihydroxybenzophenone as an intermediate for producing 3,4' diacetoxy benzophenone |
| abstract |
A method of synthesizing 3,4'dihydroxybenzophenone by reacting meta-hydroxybenzoic acid and phenol in the presence of Lewis acid and protic acid. Upon completion of the reaction, the Lewis and protic acids are removed and the 3,4'dihydroxybenzophenone reaction product is contacted with water (temperature is 10 ° C. or less) and ammonium hydroxide and filtered. The filtered material can then be reacted with an acetylating agent in the presence of an inorganic acid and activated carbon to form 3,4 'diacetoxybenzophenone. |
| priorityDate |
2009-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |