The invention relates to new aryloxy phenoxy acyl malonates of the Formula I ##STR1## a process for the preparation thereof and herbicidal compositions comprising the same. In the Formula I R.sup.1 stands for hydrogen, halogen, trifluoromethyl, trifluoromethoxy or cyano; R.sup.2 represents hydrogen, halogen, or methyl; and R.sup.3 is C.sub.1-4 alkyl, and the R.sup.3 substitutents may be the same or different, X stands for --N.dbd. or --CH.dbd. and n is 0 or 1. The new compound of the Formula I possess valuable herbicidal properties.
本发明涉及一种新的Formula I的芳
氧基
苯氧基酰
丙二酸酯,其制备方法以及包含它们的
除草剂组合物。在Formula I中,R1代表
氢,卤素,三
氟甲基,三
氟甲
氧基或
氰基;R2代表
氢,卤素或
甲基;R3是C1-4烷基,R3取代基可以相同也可以不同,X代表--N=或--CH=,n为0或1。Formula I的新化合物具有有价值的除草特性。