esters have been synthesized in moderate to excellent yields by reacting 1,3-dicarbonyl compounds with amines in the presence of catalytic amounts of Yb(OTf)3 (2 mol%). The reaction proceeds smoothly at ambient temperature under solvent-free conditions. The catalyst can be recovered and reused.
在催化量的 Yb(OTf)3 (2 mol%) 存在下,通过 1,3-二羰基化合物与胺反应,以中等至极好的产率合成了多种 β-烯
氨基酯。该反应在环境温度下在无溶剂条件下顺利进行。催化剂可以回收再利用。