Amino compounds and benzimidazoles derived from trifluralin and flumetralin

in this work, we describe the synthesis of the amino compounds (5a) and (5b), and the benzimidazoles (6a), (6b) and (6c). these amino compounds and the benzimidazoles were obtained by catalytic hydrogenation of two widely used pesticides - flumetralin (4a) and trifluralin (4b). the reactions described are simple to perform, and generate no chemical wastes. the structures of the compounds were determined through ms and nmr data.