Abstract: Di- and trifluorosubstituted alkene compounds of formula I wherein X is hydrogen or fluorine; Y is oxygen, NR1 or S(O)m; R1 is hydrogen or C1–C6-alkyl; m is 0, 1, or 2; A,B,D and E are selected from the following: a) A is N and B, D and E are CR2; or b) B is N and A, D and E are CR2; or c) D is N and A, B, and E are CR2; or d) A and D are N and B and E are CR2; or e) B and E are N and A and D are CR2; R2 is H, halogen, NH2, NO2, CN, alkyl, haloalkyl, alkenyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, aminosulfonyl, alkoxyalkyl, alkylthioalkyl, alkylsulfinylalkyl, alkylsulfonylalkyl,alkylaminoalkyl, dialkylaminoalkyl, hydroxycarbonyl, or alkoxycarbonyl; or phenyl which may be substituted with halogen, CN, NO2, alkyl, haloalkyl, alkoxy, or haloalkoxy; or a 5- to 6-membered heteroaromatic ring system containing 1 to 3 heteroatoms selected from oxygen, sulfur and nitrogen, which may be substituted with halogen, CN, NO2, alkyl, haloa

Abstract: Di- and trifluorosubstituted alkene compounds of formula I 1

Abstract: This invention relates to a method for identifying compounds that specifically inhibit a metabolic target site or pathway in plants. Enzymes which are specifically affected by the method of the invention include plant pyrimidine biosynthetic pathway enzymes, and particularly the enzymes involved in the conversion of orotate to uridine-5′-monophosphate (UMP). Further, the invention relates to a method for control of undesirable monocotyledenous and dicotyledenous plant species.