Iridium-Catalyzed Asymmetric Hydrogenation of Halogenated Ketones for the Efficient Construction of Chiral Halohydrins
作者:Congcong Yin、Weilong Wu、Yang Hu、Xuefeng Tan、Cai You、Yuanhua Liu、Ziyi Chen、Xiu-Qin Dong、Xumu Zhang
DOI:10.1002/adsc.201800267
日期:2018.6.5
Iridium‐catalyzed asymmetric hydrogenation of prochiral halogenated ketones was successfully developed to prepare various chiral halohydrins with high reactivities and excellent enantioselectivities under basic reaction condition (up to >99% conversion, 99% yield, >99% ee). Moreover, gram‐scale experiment was performed well in the presence of just 0.005 mol% (S/C=20 000) Ir/f‐amphox catalyst with 99%
成功开发了铱催化的前手性卤代酮的不对称氢化反应,以制备各种在碱性反应条件下具有高反应性和出色的对映选择性的手性卤代醇(转化率> 99%,收率99%,ee> 99%)。此外,在仅有0.005 mol%(S / C = 20 000)Ir / f-amphox催化剂存在下,克级实验性能良好,产率为99%,ee大于99%。