A long-range chiral relay via tertiary amide group in asymmetric catalysis: new amino acid-derived N,P-ligands for copper-catalysed conjugate addition
作者:Andrei V. Malkov、John B. Hand、Pavel Kočovský
DOI:10.1039/b304131j
日期:——
New N,P-ligands 4-6, derived from valinol and prolinol, respectively, have been developed for the asymmetric, copper(I)-catalysed conjugate addition of diethylzinc to unsaturated ketones; the tertiary amide group has been shown to effectively relay the chiral information from the ligand backbone to the active centre.
已经开发出分别衍生自缬氨醇和脯氨醇的新的N,P-配体4-6,用于不饱和酮的铜(I)催化的不对称铜(I)共轭加成反应。已经显示叔酰胺基团有效地将手性信息从配体主链传递至活性中心。