Acid-Assisted Ru-Catalyzed Enantioselective Amination of 1,2-Diols through Borrowing Hydrogen
作者:Li-Cheng Yang、Ya-Nong Wang、Yao Zhang、Yu Zhao
DOI:10.1021/acscatal.6b02959
日期:2017.1.6
Here, we present a highly enantioselective synthesis of 1,2-amino alcohols from readily available racemic 1,2-diols through a borrowing hydrogen process. An intriguing acid effect was discovered for this Ru-catalyzed amination reaction, which led to a significant improvement of the stereoselectivity of the process. Preliminary mechanistic studies suggest a scenario of Brønsted acid-assisted dynamic
在这里,我们介绍了通过借用氢过程从容易获得的外消旋1,2-二醇中高度对映选择性合成1,2-氨基醇的方法。对于这种Ru催化的胺化反应,发现了一种引人入胜的酸效应,这导致了该方法的立体选择性的显着改善。初步的机理研究表明,布朗斯台德酸辅助的醇动力学动力学不对称胺化的情况。