Nickel-Catalyzed Asymmetric Transfer Hydrogenation and α-Selective Deuteration of <i>N</i>-Sulfonyl Imines with Alcohols: Access to α-Deuterated Chiral Amines
作者:Peng Yang、Li Zhang、Kaiyue Fu、Yaxin Sun、Xiuhua Wang、Jieyu Yue、Yu Ma、Bo Tang
DOI:10.1021/acs.orglett.0c02921
日期:2020.11.6
A nickel-catalyzed enantioselective transfer hydrogenation and deuteration of N-sulfonyl imines was developed. Excellent α-selectivity and high deuterium content were achieved by using inexpensive 2-propanol-d8 as a deuterium source. As a highlight, no deuteration of β-C–H and the remote C–H of N-sulfonyl amines occurred, which is hard to achieve using other imines or by hydrogen isotope exchange with
开发了镍催化的N-磺酰基亚胺的对映选择性加氢和氘代反应。通过使用廉价的2-丙醇-d 8作为氘源,可获得出色的α-选择性和高氘含量。突出的一点是,没有发生氘代β- CHH和N-磺酰胺的偏远CHH,这很难通过使用其他亚胺或与D 2 O进行氢同位素交换来实现。 [Ni–D]中间体。