作者:Andrew Pelter、Robert S. Ward、Abdulkadir Sirit
DOI:10.1016/0957-4166(94)80085-5
日期:1994.9
presence of Lewis acids to afford homochiral 2(5H)-furanone derivatives. The structures of these products have been determined using nmr spectroscopy and, where possible, by X-ray analysis. Preliminary experiments have been carried out involving conjugate addition to these unsaturated lactones, demonstrating their potential as substrates for natural product synthesis.
分别很容易分别由丁烯内酯和四甲酸甲酯制备的2-三甲基甲硅烷氧基呋喃和4-甲氧基-2-三甲基甲硅烷氧基呋喃在路易斯酸存在下与一系列同手性原酸酯和恶唑烷衍生物反应生成同手性2(5 H)-呋喃酮衍生物。这些产品的结构已使用核磁共振光谱法确定,并在可能的情况下通过X射线分析确定。已经进行了涉及将共轭物添加到这些不饱和内酯中的初步实验,证明了它们作为天然产物合成的底物的潜力。