Gold‐Catalyzed Cascade Reaction of Diynamides with Allylic Alcohols: A Versatile Platform to Allenamide, 2‐Aminofuran and Bridged [2.2.2]Octadiene Derivatives
A gold-catalyzedcascadereaction of conjugated diynamides with allylic alcohols was described, which features divergent preparation of 2-aminofurans, allenamides and bridged [2.2.2]octadienes in high efficiency, complete atom economy. Given the fact that multi-bonds were constructed via single operation, this reaction represents a good example on the synthsis of value-added molecules by using readily
A simple protocol for regio-, and stereoselective hydrohalogenation of ynamide moieties in 1,3-butadiyne structures is described. The facile approach enables exact syn-addition of HX to the diyne components, giving just single isomer of the corresponding dienes and enynes. (C) 2014 Elsevier Ltd. All rights reserved.