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。