Herein, we report our studies on the synthesis of vinyl 1,2,3-triazoles through a one-pot sequence, enabled by the same copper catalyst, of three different reactions: hydroboration involving an alkyne, azidation for a vinyl boronate and azide–alkyne cycloaddition.
Synthesis of guanidine-linked NHC can be achieved easily and its copper complexes were isolated and fully characterized. These Cu complexes are found to be versatile catalysts for hydroboration, semihydrogenation and carboboration of alkynes in a highly stereo- and regioselective fashion.