Arylation of alkynes over hydrotalcite docked Rh-m-TPPTC complex

Abstract Rh- m -TPPTC complex was successful immobilized onto a hydrotalcite Zn-Al to convert selectively in aqueous media both the symmetric and nonsymmetric alkynes into functionalized alkenes, with boronic acids. The complex preserved its activity after the ionic exchange, leading to excellent results (∼87%) for the symmetric alkynes and also for the non-symmetrical alkynes (up to 99%).