In the presence of a catalytic amount of tributylphosphine, substituted 2-alkynoates or 2,3-allenoates reacted with electron-deficient olefins and imines at room temperature to afford the [3+2] cycloaddition products in moderate to good yields.
在催化量的
三丁基膦的存在下,取代的2-链烷酸酯或2,3-烯丙基酸酯在室温下与缺电子的烯烃和
亚胺反应,以中等至良好的产率提供[3 + 2]环加成产物。