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US 4,391,625 AGranted
Diesters of N-alkyl substituted amino methyl phosphonic acid useful as herbicides
AssigneeMonsanto Company
InventorWilliam R. Purdum
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Abstract
Diesters of N-alkyl substituted amino methyl phosphonic acid are disclosed which are useful as herbicides. This invention further relates to herbicidal compositions containing such diesters and to herbicidal methods employing such compounds and compositions.
Claims35
Diesters of N-alkyl substituted amino methyl phosphonic acid of the formula ##STR8## wherein Z is ##STR9## wherein R is lower alkyl;
- or Z is lower alkynyl or lower alkyl;
- R.sub.1 is selected from the group consisting of lower alkyl, lower alkoxy lower alkyl, halo lower alkyl, and phenyl lower alkyl, and R.sub.2 is hydrogen or lower alkyl.
Dependencies are inferred from the claim text.