Enantioselective domino reaction of CO2, amines and allyl chlorides under iridium catalysis: formation of allyl carbamates
作者:Min Zhang、Xiaoming Zhao、Shengcai Zheng
DOI:10.1039/c4cc00413b
日期:——
The enantioselective domino reaction between CO2 (1 atm), amines and linear allyl chlorides in the presence of an iridium complex, DABCO and toluene at 15 degrees C was realized, which gave branched allyl carbamates in acceptable to high yields with up to excellent regioselectivity (99/1) and 94% ee. This is the first example of the synthesis of chiral allyl carbamates through catalytic domino reactions
在铱络合物,DABCO和甲苯的存在下,在15°C的温度下实现了CO2(1 atm),胺和线性烯丙基氯之间的对映选择性多米诺反应,这使支链烯丙基氨基甲酸酯的收率高至可接受的范围,并且具有出色的区域选择性99/1)和94%ee。这是使用CO 2通过催化多米诺骨牌反应合成手性烯丙基氨基甲酸酯的第一个例子。