SN1-Type Reactions in the Presence of Water: Indium(III)-Promoted Highly Enantioselective Organocatalytic Propargylation of Aldehydes
作者:Riccardo Sinisi、Maria Victoria Vita、Andrea Gualandi、Enrico Emer、Pier Giorgio Cozzi
DOI:10.1002/chem.201100729
日期:2011.6.27
Water under troubled chemistry! The first catalytic stereoselective addition of aldehydes to internal functionalized propargylic alcohols promoted by a combination of organocatalysis and indium triflate is described (see scheme). The reaction is tolerant of functional groups (FG) and was performed in the presence of water. High enantioselectivities (anti, 92–99 % ee) and moderate diastereomeric ratios