abstract |
WHEREIN R1 is hydrogen, alkali metal, alkyl, substituted alkyl, alkylsulfenyl or acyl; R2 is alkyl or cyclopropyl; R3 is hydrogen, chlorine, bromine or fluorine; n and p are 0 or 1 and A is a mineral acid are useful as fungicides. A representative compound is 6-chloro-2-ethyl-1H-imidazo(4,5-b)-quinoxaline. Compounds of the formula |