developed for the synthesis of substituted pyrrole derivatives from propargylic acetates, enoxysilanes and primary amines. Various aromatic and aliphatic propargylic acetates participate well in the reaction, providing the propargylation/amination/cycloisomerization products in good yields with complete regioselectivity. The one-pot multicomponent coupling reaction furnishes substituted pyrroles in high
Three-Component Ordered Annulation of Amines, Ketones, and Nitrovinylarenes: Access to Fused Pyrroles and Substituted Indoles under Metal-Free Conditions
作者:Jinjin Chen、Dan Chang、Fuhong Xiao、Guo-Jun Deng
DOI:10.1021/acs.joc.8b02410
日期:2019.1.18
An efficient synthesis of pyrroles and indoles has been developed via three-component ordered annulation of amines, ketones, and nitrovinylarenes. The reaction selectivity can be well controlled undermetal-freeconditions to afford the corresponding heterocyclic products in good yields.
Novel Ruthenium- and Platinum-Catalyzed Sequential Reactions: Synthesis of Tri- and Tetrasubstituted Furans and Pyrroles from Propargylic Alcohols and Ketones