Chemistry Letters, Vol.31, No.2, 172-173, 2002
Tertiary amine-accelerated allylgallation of terminal alkynes
Allylic gallium sesquibromides prepared by reduction of allylic bromides with gallium metal in the presence of a catalytic amount of indium, add to terminal alkynes with the aid of a tertiary amine to give 1,4-dienes.