medicinal agents and bioactive alkaloids. Herein we report a broadly applicable synthesis of enantioenriched NH lactams through a one-pot asymmetric reductive amination/cyclization sequence of easily available keto acids/esters. Such cascade processes alleviate the demand for protecting group manipulations as well as intermediate purification. This strategy is capable of constructing enantioenriched lactams
Chiral Osmium(II)/Salox Species Enabled Enantioselective γ‐C(sp<sup>3</sup>)−H Amidation: Integrated Experimental and Computational Validation For the Ligand Design and Reaction Development
作者:Weijie Chen、Huiying Xu、Fu‐Xiaomin Liu、Kaifeng Chen、Zhi Zhou、Wei Yi
DOI:10.1002/anie.202401498
日期:——
Based on a computer-aided ligand design, the first chiral Os(II)/Salox catalytic system is realized to address the appealing yet challenging asymmetric γ-C(sp3)−H amidation of dioxazolones with precise site-/enantioselectivity control and diverse functionality. The catalytic energy profile and the chiral induction mode of the developed chiral Os(II)/Salox system are also further clarified by integrated