Azolium Aurates as Pre-Catalysts for the Oxidative Coupling of Terminal Alkynes under Mild Conditions

A simple and efficient method for the oxidativecoupling of terminal alkynes is reported for thefirst time, makinguse of imidazol(in)ium aurates as pre-catalysts. This approachdisplays high functional group tolerance and leads to a broad rangeof 1,3-diyne compounds in moderate to excellent yields using lowcatalyst loading and is performed in air under mild and sustainable conditions.

Automated summary

A simple and efficient method for oxidative coupling of terminal alkynes using imidazol(in)ium aurates as pre-catalysts is reported. It shows high functional group tolerance and leads to a broad range of 1,3-diyne compounds in moderate to excellent yields using low catalyst loading and mild conditions.