Selective Allylation and Propargylation of Azoles by Phase Transfer Catalysis in the Absence of Solvent

M-Phase transfer catalysis without solvent allows the selective preparation of N-allyl-and N-propargylazoles or N-(1-propeny1)-and N- (1,2-propadienyl)azoles by reaction of the parent azole with allyl or propargyl bromides.Small variations in the reaction conditions, base or temperature, afford the desired selectiv~ty.