A general and efficient visible-light photoredox-catalyzed cascade annulation of 2-ethynylaldehyde hydrazones with [small alpha]-bromo-carbonyls for the synthesis of various cyclohexylidene-hydrazines-fused polycyclic compounds is described. This protocol is characterized by a broad...
Palladium‐Catalyzed Ring‐Closing Aminoalkylative Amination of Unactivated Aminoenynes
作者:Suchen Zou、Bangkui Yu、Hanmin Huang
DOI:10.1002/anie.202215325
日期:2023.1.16
aminoenynes by using aminals or aldehydes and amines as coupling partners has been developed, which permits facilesynthesis of various chiral exocyclic allenic amines bearing 5 to 12-membered N-heterocycles. Synthetic transformations of the chiral products were also conducted to afford structurally unique chiral spirodiamines via axial-to-central chirality transfer.