http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3846439-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2dbb2d7ecbd600cf89fbdd230f4a466c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D271-113 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D271-113 |
| filingDate | 1970-08-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1974-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1981812aebc5e911f55c6457a2a08787 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f77b2264584cc384dc86ec675d4f253a |
| publicationDate | 1974-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3846439-A |
| titleOfInvention | Process for the preparation of 3-phenyl-5-t-butyl-2-oxadiazolones |
| abstract | 3-(2,4-Dichlorophenyl)-5-t-butyl-1,3,4-oxadiazol-2-ones of the formula: IN WHICH R represents a hydrogen atom or an alkoxy group containing one to four carbon atoms, which possess herbicidal properties, are prepared by a new process involving reaction of a halogenonitrobenzene of the formula: IN WHICH Y represents a halogen atom and R is as defined, with an alkali metal salt of 5-t-butyl-1,3,4-oxadiazol-2-one, reduction of the nitro group in the resulting 3-(2-nitro-4chlorophenyl)-5-t-butyl-1,3,4-oxadiazol-2-one, which may carry an alkoxy substituent R in the 5-position of the benzene ring, to a primary amino group, and replacement of the amino group in the resulting 3-(2-amino-4-chlorophenyl)-5-t-butyl-1,3,4-oxadiazol-2one by a chlorine atom by reaction of cuprous chloride with a diazomium salt derived from the amino compound. The process avoids the use of phosgene - an awkward reagent hitherto employed in the production of the 3-(2,4-dichlorophenyl)-5-t-butyl-1,3,4oxadiazol-2-ones. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0209230-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4912225-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4824465-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4138404-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4259497-A |
| priorityDate | 1970-04-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.