| abstract |
A compound of Formula (I): R1(CA=CA1)x-C(=X)NR2R3(I) where R1 is alkyl optionally substituted by a group selected from alkoxy, alkenyl, alkynyl, alkenyloxy, alkynyloxy, aryl, aryloxy, arylalkoxy and cycloalkyl fused to an aryl ring; x=1 or 2; X=O or S; each A and A1 is independently hydrogen, alkyl or haloalkyl; R2 is alkyl, alkenyl or cycloalkyl any of which may be substituted by halo, alkenyl, alkyl, cycloalkyl, alkynyl, dioxalanylalkyl or alkoxy; and R3 is selected from groups (A) to (D): (A) -Y=X1-(R4)a where X1 is O or S, Y is phosphorus or carbon, R4 is hydrogen, alkyl, alkoxy, acyl or CO2R5 is alkyl or aryl, and a is 1 or 2. (B) -S(R6)(O)b where R6 alkyl, aryl, aryloxy, alkoxy, thioalkoxy, thioaryl, alkythio, alkoxythio or arylthio and b is 0, 1 or 2 (C) -S(O)cNR7R8 where c is 0, 1 or 2, R7 is -COR9 or -CO2R9 where R9 is hydrogen, alkyl or a fluorine atom, a group (A) or (B) as defined above, or alkyl substituted by acyl, carboalkoxy or cyano, and R8 is alkyl (D) R1-(CA=CA1)n-C(=X)N(R2)- wherein the substituents are independently selected as in Formula (I) above. |