Efficient synthesis of chiral biaryls via asymmetric Suzuki-Miyaura cross-coupling of ortho-bromo aryl triflates
作者:Xintong Yang、Guangqing Xu、Wenjun Tang
DOI:10.1016/j.tet.2015.12.051
日期:2016.8
Efficient asymmetric Suzuki-Miyaura coupling of ortho-bromo aryl triflates with various arylboronic acids were described, providing a series of chiral biaryl triflates in high yields and up to 91% ee under mild conditions. The aryl triflates could be easily transformed to various chiral biaryl products by further derivatization. A one-pot tandem asymmetric cross-coupling/cross-coupling sequence was
描述了邻溴芳基三氟甲磺酸酯与各种芳基硼酸的高效不对称Suzuki-Miyaura偶联,在温和条件下以高收率和高达91%ee提供了一系列手性联芳基三氟甲磺酸酯。通过进一步衍生化,芳基三氟甲磺酸酯可以容易地转化成各种手性联芳基产物。通过使用单一的钯催化剂,还可以实现一锅串联的不对称交叉偶联/交叉偶联序列,证明了该方法制备手性联芳基产品的多功能性。