http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-280103-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_99a3e6cf9ae2da50e548d7039dc30f86 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D235-16 |
| filingDate | 1989-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30cbaf725c3985fde7aaa222b2c1cdb8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bee1a5f88ff076f5b78fb28c5b71cd09 |
| publicationDate | 1990-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-280103-A1 |
| titleOfInvention | PROCESS FOR PREPARING SUBSTITUTED 2-CYANOMETHYLBENZIMIDAZOLES |
| abstract | The invention relates to a novel process for the preparation of substituted 2-cyanomethylbenzimidazoles of the formulas (1) or (2) in which R 1, R 2, R 3, R 4 are substituted by C 1 -C 8 -alkyl, straight-chain or branched, identical or different, or R3-R4 represent a cyclalkyl radical having 1-8 C-atoms by refluxing substituted o-phenylenediamine hydrohalides, sulfates or perchlorates with cyanoacetic acid alkyl esters and pyridine under O3-free atmosphere. After cooling and mixing with water, the precipitated solid is filtered off with suction and dried. The product turns up pure with a yield of 50-70%. Formula (1), (2) |
| priorityDate | 1989-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.