The highly efficient, regioselective, and enantioselective transfer hydrogenation of α-keto ketimines and reductive amination of diketones by Brønsted acid catalysis is described. A series of chiral α-amino ketones is prepared in high yields (up to >99%), excellent regioselectivities (up to >99:1), and enantioselectivities (up to 98% ee). This method has broad substrate scope.
描述了通过布朗斯台德酸催化的α-酮基酮
亚胺的高效,区域选择性和对映选择性转移氢化和二酮的还原胺化。以高收率(最高> 99%),优异的区域选择性(最高> 99:1)和对映选择性(最高98%ee)制备了一系列手性α-
氨基酮。该方法具有广泛的基材范围。