abstract |
(57) Abstract: The present application Y represents oxygen or sulfur and X represents -O-N = CR 1 R 2 , -OR 3, -OCHR 4 -CO-NR 5 R 6 or -NR 7 R It relates to derivatives of 2,3,5,6-tetrafluorobenzoic acid of the formula (I) representing 8 , as well as a process for the preparation of said substances and their use in controlling pests. |