Diaryl ethers and processes for their preparation and herbicidal and desiccant compositions containing them

Abstract

Diaryl ether compounds useful in the control of weeds are described. An exemplary compound is represented by the general formula (I): In this formula Q is represented by Q9: X and Y represent a hydrogen atom, halogen atom, cyano group, nitro group or (C1-6)haloalkyl group. A1 and A2 are independently oxygen or sulfur atoms. R9 and R10 represent a hydrogen atom, a (C1-6)alkyl group, an acyl group, or a (C1-6)alkylsulfonyl group; or R9 and R10 may form a ring consisting of polymethylene, (CH2)m groups, where m is an integer of 2, 3, 4 or 5, together with the nitrogen atom of NR9R10, which may or may not have a (C1-6)alkyl substituent. Methods of making the compounds are also described.

Dependencies are inferred from the claim text.