| abstract |
The invention relates to substituted dihydro-hydantoin derivatives of the formula (I) wherein X, A, R 1 , R 2 , R 3 , R a and R b are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control or inhibit plant growth. |