Chemo-, Regio-, and Stereoselective Synthesis of syn-Aryl Glycol Monoesters from Aryl Olefins with Hydrogen Peroxide Catalyzed by RuCl3
作者:Chunbao Li、Yanqiao Zhang、Guobiao Chu、Xiaoxue Cui、Zhijie Han、Daoke Dou、Yuanli Chen、Xiaosong Yu
DOI:10.1055/s-0029-1219553
日期:2010.4
Chemo-, regio-, and stereoselectivity have been achieved in the oxidations of aryl olefins. The aryl olefins were oxidized by 2 equivalents of H2O2 in acetic acid, catalyzed by 0.02 equivalent of RuCl3, leading to the formations of syn-aryl glycol monoesters. As the reaction is concerted, both the regio- and stereoselectivity are excellent. In the presence of aliphatic C=C bonds, the aryl C=C bonds were selectively dioxygenated. This represents the first example of chemoselective dioxygenation of aryl C=C bonds.
在芳基烯烃的氧化反应中实现了化学选择性、区域选择性和立体选择性。芳基烯烃在醋酸中由2当量的H2O2氧化,催化剂为0.02当量的RuCl3,生成了syn-芳基甘油单酯。由于反应是协同进行的,因此区域选择性和立体选择性均表现优异。在脂肪烃C=C键的存在下,芳基C=C键被选择性二氧化。 这是芳基C=C键化学选择性二氧化的第一个例子。