http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H10251192-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c72d118f5664072de841f9c5c34b9d99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-75 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-83 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-83 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-75 |
| filingDate | 1997-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7ea1e26c0c580060f3ee65f1e75d4b3e |
| publicationDate | 1998-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H10251192-A |
| titleOfInvention | Improved method for producing coupled 4,6-dibenzoyl resorcinols |
| abstract | (57) [Problem] To provide a method for producing a methylene-bridged dimer of 4,6-dibenzoylresorcinol. SOLUTION: A mixture of 4,6-dibenzoylresorcinol and about 1/2 molar equivalent or more of an alkylparaaldehyde or aromatic aldehyde is heated in a solvent with an acid at a temperature from about 80 ° C. to reflux temperature. In this one-step process, a methylene-bridged dimer of 4,6-dibenzoylresorcinol of the following formula is obtained as the product. Embedded image Wherein Ar 1 and Ar 2 are independently a substituted or unsubstituted monocyclic or polycyclic aryl group, and R is hydrogen, an aryl group, or a linear or branched alkyl chain having less than about 10 carbon atoms. ). If an aromatic aldehyde is used, no additional solvent needs to be added. |
| priorityDate | 1996-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.