Green Thiocyanation of Aromatic and Heteroaromatic Compounds by Using Silica Boron Sulfonic Acid as a New Catalyst and H2O2 as Mild Oxidant

Highly efficient regioselective thiocyanations of indoles and N,N-disubstituted anilines are achieved via a green and simple protocol using Silica Boron Sulfonic Acid (SBSA) as a new catalyst, KSCN and hydrogen peroxide as a mild and environmentally friendly oxidant in aqueous condition.