http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0356478-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2baf849d216e689ecc40ccc931a7a7bc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-128 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-38 |
| filingDate | 1989-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1694ca772d44fe5a57b1501050927d1 |
| publicationDate | 1991-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0356478-A |
| titleOfInvention | Production of thiophene carboxylic acid |
| abstract | PURPOSE: To obtain the title substance which is useful as an intermediate of herbicide or the like in high yield, by effecting liquid phase oxdation of a methylthiophene with molecular oxygen in the presence of a catalyst comprising heavy metal oxide catalyst and a bromine compound. n CONSTITUTION: A compound of formula I[X, Y, Z are H, methyl, halogen, NO 2 . CN, COOR 1 , NR 1 R 2 , SO 2 CH 2 , R 1 CO, OR 1 , CH(R 3 ) 2 C(R 3 ) 3 ; R 1 , R 2 are H, alkyl of C 1 to 4 ; R 3 is Cl, Br] is oxidized in a liquid phase with a molecular oxygen in the presence of a catalyst comprising a heavy metal oxide catalyst such as a soluble Co salt or soluble Mn salt and a bromine compound such as ammonium bromide or ammonium bromide at 60 to 180°C to give the compound of formula II. The reaction is preferably carried out in a solvent such as acetic acid. n COPYRIGHT: (C)1991,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109195961-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2012152741-A1 |
| priorityDate | 1989-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.