摘要:
A selective method for the synthesis of 3-(alk-2-yn-1-yl)-1,3-oxazolidines has been developed by the reaction of bis(oxazolidin-3-yl)methanes with terminal acetylenes with copper-containing catalysts. The reaction of terminal acetylenes with optically active bis((4R)-4-ethyl-1,3-oxazolidin-yl)methane led to the formation of (4R)-3-(2-alkynyl)-4-ethyl-1,3-oxazolidines.