| 摘要 |
<p>This disclosure relates to N-perfluoroacyl derivatives of N-phosphonomethylglycinonitrile. More particularly, this disclosure relates to diaryl esters of N-perfluoroacyl-N-phosphonomethylglycinonitriles, the herbicidal use thereof and to herbicidal compositions containing same. The compounds of the invention have the formula <CHEM> wherein R is a member of the groupe consisting of naphthyl, phenyl and phenyl substituted with from 1 to 3 substituents individually selected from the class consisting of halogen, C1-4 alkyl, C1-4 alkoxy, nitro and trifluoromethyl and n is an integer of from 1 to 3.</p> |
