Ruthenium‐Catalyzed Direct Asymmetric Reductive Amination of Diaryl and Sterically Hindered Ketones with Ammonium Salts and H
<sub>2</sub>
作者:Le' an Hu、Yao Zhang、Qing‐Wen Zhang、Qin Yin、Xumu Zhang
DOI:10.1002/anie.201915459
日期:2020.3.23
A Ru-catalyzed directasymmetric reductive amination of ortho-OH-substituted diaryl and sterically hindered ketones with ammonium salts is reported. This method represents a straightforward route toward the synthesis of synthetically useful chiral primary diarylmethylamines and sterically hindered benzylamines (up to 97 % yield, 93->99 % ee). Elaborations of the chiral amine products into bioactive
Silver-catalyzed decarboxylative C–H functionalization of cyclic aldimines with aliphatic carboxylic acids
作者:Jingjing Wang、Xue Liu、Ziyan Wu、Feng Li、Tingting Qin、Siyuan Zhang、Weiguang Kong、Lantao Liu
DOI:10.1016/j.cclet.2021.03.011
日期:2021.9
Silver-catalyzeddecarboxylative C–H alkylation of cyclic aldimines with abundant aliphaticcarboxylicacids has been realized under mild reaction conditions generating the corresponding products in moderate to good yields (32%–91%). In addition, a gram-scale reaction, late-stage modification of drug, synthetic transformation of the product, and further application of the catalytic strategy were also