| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D333-48 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D333-36 |
| filingDate |
1989-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a5e9e652494c9790fdcfa10d5fe289ce
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ac687cd5236338e3181dc645b8b923d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_862836a2214d08b3f2c0e9cb1b410a5d |
| publicationDate |
1989-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0331919-A2 |
| titleOfInvention |
Process for the preparation of Thiophene derivatives and dihydrothiophen-1-oxides |
| abstract |
Thiophene derivatives with an - optionally substituted - amino group on the thiophene ring are prepared by dehydrogenation of dihydrothiophenes which are substituted in the same way as the desired thiophene derivatives, with H₂O₂, the dihydrothiophenes with H₂O₂ in a first reaction stage in a neutral medium to give the corresponding sulfoxides reacted, which are then rearranged in the second reaction stage with acid to the thiophene derivatives.n n n The dihydrothiophene-1-oxides formed as intermediates are new compounds. In the same way as the thiophene derivatives resulting from the rearrangement with acid, they are intermediate products mainly in the crop protection and pharmaceutical sectors. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0538691-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006072375-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006072375-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7923571-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2858323-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5321042-A |
| priorityDate |
1988-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |