A number of functionalized tetrahydrofuran and 3,6-dihydropyran derivatives are prepared selectively in moderate to good yields by the reactions of vinylidenecyclopropanes with activated carbonyl compounds in the presence of Lewis acid.
在
路易斯酸存在下,通过亚
乙烯基环丙烷与活化的羰基化合物的反应,以中等至良好的产率选择性地制备许多官能化的
四氢呋喃和3,6-二氢
吡喃衍
生物。