http://rdf.ncbi.nlm.nih.gov/pubchem/patent/HU-0103480-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33dafb5bbc2ec47ebcb7becbbe60f704 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q30-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B09B5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q30-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q50-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G06Q50-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-04 |
| filingDate | 2001-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1da1fd348f806b22768dd17fed8bf07e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a4a0104e72743e3a73139db0e3150eda http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_36a3a95cf00105974e7ecb9b4941079b |
| publicationDate | 2002-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | HU-0103480-A2 |
| titleOfInvention | Process for the preparation of chromate carboxylic acid |
| abstract | SUMMARY OF THE INVENTION The present invention relates to a process for preparing a chromanic carboxylic acid, wherein a secondary amine and an acid in the presence of a dialkylphenol compound, a formaldehyde, and a single alcohol are reacted to obtain an alkoxymethylated phenol compound (step 1); the resulting alkoxymethylated phenol compound is reacted with a carbon-carbon double ester at a temperature not lower than 100 ° C to obtain a dialkyl chromanic carboxylic acid ester (step 2); the resulting dialkyl chroman carboxylic acid ester is hydrolyzed to obtain a dialkyl chromanic carboxylic acid (step 3); and finally, the dialkyl chromanic acid thus obtained is reacted with an aromatic hydrocarbon in the presence of a Lewis acid (step 4). HE |
| priorityDate | 2000-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 71.