| abstract |
5-heterocyclylpyridine-3-carbon-benzylamide and anilide derivs of formula (I) are new; R1,R2=alkyl, alkoxy or alkoxy-alkyl; R3 = a gp (i) or (ii) or (1-methyl-1-phenyl) -ethylam-ine: R4 = H alkyl or cycloalkyl; R5,R6= H,halo,NO2 or alkoxy; Ry,R8=H,halo or alkyl. Het = a gp. (iii)-(v) or benzothiazo-lyl: A = N or CH; B = O or S; X = N or CH. R9 = H, alkyl, haloaalkyl, alkoxy, alkylthio, alkoxyalkyl, cycloalkyl, (di)alkylamino, benzyl, acylamino or aryl; Y = O or S. Cpds of formula"(IV) are also new. USE: (I) are herbicides useful as e.g. defoliants, dessicants and weed killers. Doses of (I) are 0.001-10 (esp 0.01-5) kg/ha. |