2-bis(trimethylsilyl)ethenyl]benzaldehyde and aromatic amines, undergo Mannich-type reactions with cyclic and acyclic ketones. The one-pot reaction is efficiently catalysed by zirconium oxychloride (ZrOCl2.8H2O) at room temperature. β-Amino carbonyl compounds containing bis(trimethylsilyl)ethenyl groups are obtained in acceptable to good yields with moderate to high stereoselectivity under solvent-free conditions
由 4-[2,2-双(三甲基甲
硅烷基)
乙烯基]
苯甲醛和芳香胺原位生成的醛
亚胺与环状和无环酮进行曼尼希型反应。室温下,
氯氧化锆 (ZrOCl2.8H2O) 可有效催化一锅法反应。在无溶剂条件下,以可接受的良好收率和中等至高立体选择性获得含有双(三甲基甲
硅烷基)
乙烯基的 β-
氨基羰基化合物。