Ketones possessing a-hydrogen undergo smooth thiocyanation with ammonium thiocyanate in the presence of N-bromosuccinimide (NBS) at room temperature in acetonitrile under neutral conditions to produce the corresponding alpha-ketothiocyanates in excellent yields with high selectivity. The use of NBS makes this procedure simple, convenient and cost effective. In addition, diethyl azodicarboxylate (DEAD) was also found to promote this reaction under mild conditions. (c) 2011 Elsevier Ltd. All rights reserved.