| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-367 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-367 |
| filingDate |
1970-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a8e48b20a68d6af5c9422225a19d9f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6dba2520b0a840fb8444308daa7a1ee6 |
| publicationDate |
1972-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-2040643-A1 |
| titleOfInvention |
Process for the production of hydroxyphenyl acetic acids |
| abstract |
Cpds. of general formula (I) : (where n is 1,2 or 3) are prepd. by reacting halophenyl acetic acids of formula (II): (where Hal is F, Cl or Br) with alkalihydroxides at 150-300 degrees C under pressure and in the presence of a combination of copper salts and metallic copper or Cu-cps. produced from the combination during reaction. The acids are then liberated from the salts obtained. (1) are intermediates in the synthesis of choleretically-active cpds. The process gives high yields of high purity. The metallic Cu may be in the form of powder, shavings or the wall of the copper reaction vessel. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2401900-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5167747-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2427820-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5221772-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2489312-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4118444-A1 |
| priorityDate |
1970-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |