http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-1131224-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da54f7ebbd2d9d8a82f92aca4d1b4e48 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D285-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D285-06 |
| filingDate | 1979-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1982-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac9d1aeb12592fbb4e29cb847834cfe7 |
| publicationDate | 1982-09-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-1131224-A |
| titleOfInvention | Process for the preparation of 1,2,3-thiadiazol-5-yl ureas |
| abstract | ABSTRACT OF THE DISCLOSURE The invention provides a process for the preparation of 1, 2, 3-thiadiazol-5-yl ureas of the general formula I wherein R1 represents a hydrogen atom, or an alkyl radical having 1 to 4 carbon atoms, and R2 respresents a (C1-C4)-alkyl, (C5-C8)-cycloalkyl, methyl-(C5-C8)-cycloalkyl, phenyl, halo-phenyl, (C1-C4)-alkylphenyl, (C1-C4)-alkoxyphenyl, nitrophenyl, trifluoromethylphenyl, pyridyl or pyrimidyl radical, which comprises reacting a compound of the formula II with a compound III in an inert organic solvent. Preferably tha compound II is formed in tbe reaction mixture. The process of the invent-ion makes it possible to prepare the ureas in a safe and tech-nically simple manner in virtually quantitative yields and good purity Previously the preparations required the use of 5-amino-1,2,3-thiadiazole which is not easily obtained and is not completely harmless. |
| priorityDate | 1978-09-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.