A new mild procedure for the direct coupling of 1-trimethylsilyl acetylenes with vinyl triflates or aryl iodide

1-Trimethylsilyl acetylenes can be directly coupled with vinyl triflates or aryl iodide in the presence of the appropriate amount of potassium carbonate and methanol and a catalytic amount of AgCl and Pd(PPh3)4. Functionalized enynes can thus be obtained in good to excellent yields without prior deprotection of the alkyne.