| 摘要 |
The invention relates to the use, as herbicides, of alpha -substituted or ???,???- disubstituted benzyl phosphonic acid esters, thiol esters and ester amides and compositions containing such compounds. The phenyl of the benzyl radical may optionally be mono-, di- or tri-substituted. The invention further provides novel compounds of the above-mentioned structure and processes for making such compounds. |
