Asymmetric Hydrogenation of Isoquinolines and Pyridines Using Hydrogen Halide Generated in Situ as Activator
作者:Mu-Wang Chen、Yue Ji、Jie Wang、Qing-An Chen、Lei Shi、Yong-Gui Zhou
DOI:10.1021/acs.orglett.7b02502
日期:2017.9.15
traceless activation reagent, a general iridium-catalyzed asymmetric hydrogenation of isoquinolines and pyridines is developed with up to 99% ee. This method avoids tedious steps of installation and removal of the activating groups. The mechanism studies indicated that hydrogen halide generated in situ acted as an activator of isoquinolines and pyridines.
通过使用卤化物三氯异氰尿酸作为无痕活化剂,可以开发出具有高达99%ee的一般铱催化的异喹啉和吡啶的不对称氢化反应。该方法避免了安装和拆卸活化基团的繁琐步骤。机理研究表明,原位产生的卤化氢起异喹啉和吡啶的活化剂作用。