| abstract |
Procedure for the preparation of aryldiamines, of formula I ** (See formula) ** in which R1 means a cycloalkyl radical with 3 to 5 carbon atoms, the 2-furyl radical or the tetrahydro-2-furyl radical and R2 means a lower alkyl radical, constituents of the active material in agents to selectively combat weeds in crop plantations, characterized by reacting a 2,4-dihalogen-3,5-dinitro-trifluoromethylbenzene of formula II ** (See formula) ** in which Hal represents chlorine or bromine, with an amine of formula III ** (See formula) ** in which R1 means a cycloalkyl radical with 3 to 5 carbon atoms, the 2-furyl radical or the tetrahydro-2-furyl radical and R3 signifies a lower alkyl radical, and to be subsequently reacted with ammonia. (Machine-translation by Google Translate, not legally binding) |