Diaryl ethers and processes for their preparation and herbicidal and desiccant compositions containing them
申请人:ISK Americas Incorporated
公开号:US06333296B1
公开(公告)日:2001-12-25
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.
描述了在除草中有用的二芳醚化合物。一个示例化合物由通用式(I)表示:
在这个式子中,Q由Q9表示:
X和Y代表氢原子、卤原子、氰基、硝基或(C1-6)卤代烷基。A1和A2独立地表示氧或硫原子。R9和R10代表氢原子、(C1-6)烷基、酰基或(C1-6)烷基磺酰基;或者R9和R10可以形成由聚亚甲基(CH2)m基团组成的环,其中m是2、3、4或5的整数,与NR9R10的氮原子一起,该氮原子可能具有或不具有(C1-6)烷基取代基。还描述了制备这些化合物的方法。