Using visible light as a driving force and molecular oxygen as a green oxidant, we developed bis(oxazoline)–Ni(acac)2 catalyzed asymmetric α-hydroxylation of β-keto esters under low photosensitizer loading, and the protocol enabled an efficient transformation to provide the desired chiral α-hydroxy-β-keto esters in high yields (up to 99%) and enantioselectivities (up to 99% ee) at room temperature
使用可见光作为驱动力,分子氧作为绿色氧化剂,我们开发了双(
恶唑啉)-Ni(acac) 2在低光敏剂负载下催化 β-
酮酯的不对称 α-羟基化,该方案能够有效地转化为在室温下以高产率(高达 99%)和对映选择性(高达 99% ee)提供所需的手性 α-羟基-β-
酮酯。