| abstract |
2,6-disubstituted pyridines and 2,4-disubstituted pyrimidines of the formula I wherein A is phenyl, a substituent substituted by at least one substituent selected from halogen and haloalkyl of 1 and 4 C; or pyrazolyl or pyridyl, optionally substituted with at least one substituent selected from halogen, alkyl of 1 and 4 C and haloalkyl of 1 and 4 C; or difluorobenzodioxolyl; m is 0 and 5; n is 0 and 2; R.sup.1.n. is H, halogen, poppad substituted alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkoxy, alkoxyalkyl, dialkoxyalkyl, alkylthio, amino, alkylamino, dialkylamino, alkoxyamino or formamidino; R.sup.2.n. is H, halogen, poppad substituted alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkyl, alkoxyalkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl, nitro, cyano, haloalkyl, haloalkoxy, haloalkylthio or pentahalenesulfonyl; X is an acid to; and Z is nitrogen or CH. Process for the Preparation of Derivatives of Formula I. Compounds of Formula XV as Intermediates for the Preparation of Derivatives of Formula I. Herbicidal Compound of Formula I. to use this derivative for the muse. \ t |