Pd-catalyzed asymmetric allylic aminations with aromatic amine nucleophiles using chiral diaminophosphine oxides: DIAPHOXs
摘要:
Asymmetric allylic aminations with aromatic amine nucleophiles using Pd-DIAPHOX catalyst systems are described. The asymmetric allylic aminations of various allylic carbonates proceeded using 2-5 mol % of the catalyst and BSA, providing the corresponding N-aryl chiral allylic amines in up to 99% ee for cyclic substrates, and in up to 97% ee for acyclic substrates. (C) 2008 Elsevier Ltd. All rights reserved.
New Schiff bases derived from chiral d‐camphor were determined to be effective phosphine ligands for the asymmetric palladium‐catalyzed allylic alkylation of activated methylene compounds, the allylic etherification of alcohols, and the allylic amination of primary amines or secondary amines, in which the corresponding products with various functional groups were achieved in good yields with excellent
Enantioselective synthesis of N-allylindoles via palladium-catalyzed allylic amination/oxidation of indolines
作者:Qiang Zhao、Chun-Xiang Zhuo、Shu-Li You
DOI:10.1039/c4ra00701h
日期:——
A highly efficientsynthesis of N-allylindoles was realized via palladium-catalyzed asymmetric allylic amination/oxidation sequential reaction of indolines. The N-alkylated indole derivatives were obtained with up to 91% yield and 97% ee.