Retraction:Predicting new ugi-smiles couplings: A combined experimental and theoretical study

Following our previous mechanistic studies of multicomponent Ugi-type reactions, theoretical calculations have been performed to predict the efficiency of new substrates in Ugi-Smiles couplings. First, as predicted, 2,4,6-trichlorophenol experimentally gave the corresponding aryl-imidate. Theoretical predictions of nitrosophenols as good acidic partners were then successfully confirmed by experiments. In the latter case, the reaction offers a new access to benzimidazoles. Cracking an Ugi-Smiles: Theoretical calculations were performed to predict the efficiency of new partners in Ugi-Smiles couplings. First, as predicted, 2,4,6-trichlorophenol experimentally gave the corresponding aryl-imidate (see scheme). Theoretical predictions of nitrosophenols as good acidic substrates were then successfully confirmed by experiments. In the latter case, the reaction offers a new access to benzimidazoles.