Abstract The novel NCO chelating ligand L, 1-CH 2 N (CH 3) 2-3-CH 2 OCH 3-C 6 H 4, was prepared in four steps from commercially available m-tolunitrile in a good yield. Successful lithiation of this ligand was achieved by the reaction with n-BuLi in hexane. Using of this in situ prepared organolithium compound LLi in the reactions with MCl 3 (M= Sb, Bi) in 1: 1 molar ratio led to isolation of the desired mono-organocompounds MLCl 2 (M= Sb (1), Bi ( ...