Asymmetric Hydrogenation of Racemic 6-Aryl 1,4-Dioxaspiro[4.5]decan-7-ones to Functionalized Chiral β-Aryl Cyclohexanols via a Dynamic Kinetic Resolution
作者:Dan Yang、Ai-Jiao Yang、Yong Chen、Jian-Hua Xie、Qi-Lin Zhou
DOI:10.1021/acs.orglett.1c00044
日期:2021.3.5
asymmetric hydrogenation method for the synthesis of functionalized β-aryl cyclohexanols is described. With chiral spiro ruthenium catalyst (Ra,S,S)-5c, a series of racemic α-aryl cyclohexanones bearing a β-monoethylene ketal group were hydrogenated to the corresponding functionalized β-aryl cyclohexanols in high yields with enantioselectivity of up to 99% ee via a dynamic kinetic resolution. This protocol
描述了用于合成官能化的β-芳基环己醇的钌催化的不对称氢化方法。用手性螺钌催化剂(R a,S,S)-5c将一系列带有β-单亚乙基缩酮的外消旋α-芳基环己酮氢化成相应的官能化β-芳基环己醇,对映选择性高达99通过动态动力学分辨率得到的ee百分比。该协议可以以十亿分之一规模进行,并为光学活性和高密度官能化的芳基环己醇的合成提供了可能的方法。