Additional mechanistic and synthetic details concerning the formation of nitroalkylated aromatic products from the reaction of nitroalkanes with manganese (II1) acetate and an aromatic compound are presented. A large isotope effect (kH/kD= 4.02-4.20) was found for both manganese (II1)-and cerium (IV)-promoted nitromethylations with nitromethane-d3 while no isotope effect (k~/k~= 1.05) was observed with benzene-d6. This indicated that ...