Efficiency of ionic liquid supported organotin reagents in
Stille cross-coupling reactions involving aryl bromides has
been investigated. In a general manner, products were isolated
with good yields by using a very simple catalytic system without the need of solvent, ligand, or additives. The organotin
compounds were recycled without loss of activity
and the contamination by tin was limited and controlled ([Sn]
3 ppm)