Oxidation of silyl enolates was found to be smoothly catalyzed by [Cu(bpy)(BF4)2(H2O)2(bpy)]n (bpy = 4,4′-bipyridine) under molecular oxygen, and provided the corresponding α-hydroxy carbonyl compounds in high yield. The insoluble organic–inorganic hybrid polymer was readily recovered by centrifugation after the completion of reaction, and the recovered catalyst could be reused.
发现
硅烯醇盐的氧化反应在分子氧的催化作用下,由[Cu(bpy)(
BF4)2(
H2O)2(bpy)]n(bpy = 4,4′-联
吡啶)顺利进行,并获得了高产率的相应α-羟基羰基化合物。反应完成后,不溶性的有机-无机杂化聚合物可以通过离心轻松回收,回收的催化剂可以重复使用。