Simply air: Vanadium-catalyzed oxidative kinetic resolution of methyl o-chloromandelate by ambient air
作者:Lu Yin、Xian Jia、Xing Shu Li、Albert S.C. Chan
DOI:10.1016/j.cclet.2010.03.002
日期:2010.7
Vanadium-catalyzed oxidative kinetic resolution (OKR) of methyl o-chloromandelate 2a, key intermediate of the well-known oral antiplatelet agent (S)-clopidogrel, was achieved by ambient air for the first time. The air oxidation system, which was composed of vanadium and tridentate Schiff base ligands derived from amino alcohols and salicylaldehyde derivatives, afforded an efficient and economic approach
钒催化的甲基的氧化动力学拆分(OKR)ø -chloromandelate 2a中,公知的口服抗血小板剂(的关键中间体小号) -氯吡格雷,通过环境空气首次实现。空气氧化系统由衍生自氨基醇和水杨醛衍生物的钒和三齿Schiff碱配体组成,为具有高对映选择性(> 99%ee)的目标中间体提供了一种有效而经济的方法。