| abstract |
A class of 2-arylpyrimidines which is useful in the control of weeds is of the general formula:n n wherein R² is an optionally substituted aromatic ring; R³ is a saturated or unsaturated alkyl group; R⁵ is selected from hydrogen, halo, alkyl, alkenyl, alkynyl, alkoxy, and alkylthio; R⁶ is selected from hydrogen, halo, alkyl, haloalkyl, aryl, and alkoxy; or R⁵ and R⁶ are joined together to form a ring; and X is oxygen or sulfur. |