Convincing Catalytic Performance of Oxo-Tethered Ruthenium Complexes for Asymmetric Transfer Hydrogenation of Cyclic α-Halogenated Ketones through Dynamic Kinetic Resolution
作者:Taichiro Touge、Hideki Nara、Michio Kida、Kazuhiko Matsumura、Yoshihito Kayaki
DOI:10.1021/acs.orglett.1c00739
日期:2021.4.16
A highly efficient dynamic kinetic resolution of cyclic halohydrins was achieved by the asymmetric transfer hydrogenation of racemic α-haloketones. Bifunctional oxo-tethered Ru(II) catalysts could promote the reduction without deterioration of halogens. By structural tuning of the catalyst, chiral alcohols having halogen, ester, carboxamide, and sulfone functions were obtained variably with excellent
通过外消旋α-卤代烃的不对称转移氢化,可以实现高效的环卤代醇动力学动力学拆分。双官能的氧束缚Ru(II)催化剂可以促进还原而不会降低卤素的含量。通过催化剂的结构调整,可以可变地获得具有卤素,酯,羧酰胺和砜功能的手性醇,具有出色的非对映异构体和对映体选择性(高达> 99:1 dr和> 99.9 ee),从而提供了一种简捷的合成方法。多巴胺D3受体配体,(+)-PHNO。