The combined use of a catalytic amount of silver acetate and a stoichiometric amount of DBU efficiently catalyzed the incorporation of CO2 under mild reaction conditions into a wide range of propargylic alcohols bearing a terminal or an internal triple bond to afford the corresponding cyclic carbonates in high-to-excellent yields. All the cyclic carbonates obtained from the reaction were found to be
催化量的
醋酸银和
化学计量量的
DBU 的组合使用在温和的反应条件下有效地催化了
CO2 掺入到各种带有末端或内部三键的炔
丙醇中,以提供相应的环状
碳酸酯。到优秀的产量。发现从反应中获得的所有环状
碳酸酯都是单一异构体。通过 X 射线晶体结构分析和 NOE 实验确定几何形状为 (Z)。 (© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)