http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4138404-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 | 1976-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1979-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94ad31da50fa0a11f3d912236d9be39c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c3016b8dffc66506068e6252fcd8f358 |
| publicationDate | 1979-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4138404-A |
| titleOfInvention | Process for the preparation of oxadiazolines |
| abstract | Oxadiazoline derivatives of the formula: ##STR1## WHEREIN R is alkyl of 1 through 4 carbon atoms, which are useful as intermediates in the synthesis of oxadiazoline derivatives of the formula: ##STR2## WHEREIN R is as defined above the R 1 is alkyl of 1 through 4 carbon atoms, possessing useful herbicidal properties, are prepared by a new process which comprises reducing the nitro group in a 5-alkyl-3-(2-nitro-4-chlorophenyl)-1,3,4-oxadiazolin-2-one of the formula: ##STR3## wherein R is as defined above to a hydroxylamino group, treating the resulting 5-alkyl-3-(2-hydroxylamino-4-chlorophenyl)-1,3,4-oxadiazolin-2-one with concentrated sulphuric acid of density about 1.83 to produce the corresponding amino-phenol, and converting the amine group in the resulting 5-alkyl-3-(2-amino-4-chloro-5-hydroxyphenyl)-1,3,4-oxadiazolin-2-one to a chlorine atom. The 5-alkyl-3-(2-hydroxylamino-4-chlorophenyl)-1,3,4-oxadiazolin-2-one intermediates are new compounds. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6686318-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4725302-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5124341-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6602826-B1 |
| priorityDate | 1973-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 122.