Novel process for synthesis of 1,1,3,3-tetrabutyl-1-methoxy-3-isocyanatodistannoxane

A new process for synthesis of 1,1,3,3-tetrabutyl-1-methoxy-3-isocyanatodistannoxane (TBMI) from dibutyltin oxide (DSnO), methyl carbamate and methanol was proposed. The structure of the TBMI was confirmed by UV-Vis, elemental analyses, FTIR and HPLC. The effects of various conditions, such as reaction temperature, pressure, reaction time, molar ratio of the reactants and the stirring speed were investigated in the terms of TBMI yield.