Effective Guanidine??Catalyzed Synthesis of Carbonate and Carbamate Derivatives from Propargyl Alcohols in Supercritical Carbon Dioxide

…, G Ruffolo, L Veltri, T Zanetta, M Costa

Index: Ca', Nicola Della; Gabriele, Bartolo; Ruffolo, Giuseppe; Veltri, Lucia; Zanetta, Tito; Costa, Mirco Advanced Synthesis and Catalysis, 2011 , vol. 353, # 1 p. 133 - 146

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Citation Number: 24

Abstract

Abstract The reactions of propargyl alcohols with carbon dioxide in supercritical carbon dioxide or in acetonitrile with gaseous carbon dioxide in the presence of organic bases as catalysts have been examined. Bicyclic guanidines are effective catalysts for the formation of α-methylene cyclic carbonates under mild reaction conditions. Oxoalkyl carbonates, oxoalkyl carbamates or α-methyleneoxazolidinones are obtained in high yields and good ...