A catalytic amount of copper(II) trifluoromethanesulfonate (Cu(OTf)(2)) in the presence of trimethylchlorosilane (TMSCl) effectively promoted the aminomethylation of indoles bearing a variety of functional groups kith a N-sifyl-N,O-acetal in good to excellent Yields. (C) 2002 Elsevier Science Ltd. All rights reserved.