Collect. Czech. Chem. Commun. 1993, 58, 1399-1402

Synthesis of Dimethyl Carbonate from Carbon Dioxide and Methanol in the Presence of Organotin Compounds

Juraj Kizlink

Department of Organic Technology, Slovak Technical University, 812 37 Bratislava, Slovak Republic


The effect of a series of organotin(II) compounds of the formulae Bu2SnX2 (X = OMe, OEt, OBu, Cl Br, OPh, OOCMe, OOC(CH2)10Me, SSNEt2; X2 = O, (OH, Cl) and Bu2XSnOSnXBu2 (X = Cl, Br, OOCMe, OBu, n-Bu) in the synthesis of dimethyl carbonate by the title reaction was studied. It was found that the most efficient compounds of the series were the tin alkoxides Bu2Sn(OR)2 (R = Me, Et, Bu) which afforded the carbonate in up to 160 mole % yields (with respect to the tin compound) under convenient reaction conditions (low CO2 pressure, 130 - 190 °C, 6 h).