Iridium-Catalyzed Double Asymmetric Hydrogenation of 2,5-Dialkylienecyclopentanones for the Synthesis of Chiral Cyclopentanones
作者:Yu Nie、Qianjia Yuan、Feng Gao、Masahiro Terada、Wanbin Zhang
DOI:10.1021/acs.orglett.2c02656
日期:2022.11.4
Herein, we report an efficient iridium-catalyzed double asymmetric hydrogenation of 2,5-dialkylienecyclopentanones, delivering the chiral 2,5-disubstituted cyclopentanones in excellent yields and stereoselectivities. The results of the kinetic experiments and control experiments indicated that the two C═C bonds were hydrogenated in a stepwise manner and the second stereocenter was synergistically controlled
在此,我们报道了一种有效的铱催化双不对称氢化 2,5-二亚烷基环戊酮,以优异的收率和立体选择性提供手性 2,5-二取代环戊酮。动力学实验和对照实验的结果表明,两个C=C键是逐步加氢的,第二个立体中心是由手性催化剂和单加氢产物的手性协同控制的。氢化产物可以以克级制备并且易于衍生化。