Bis(dialkylamino)cyanoboranes: highly efficient reagents for the Strecker-type aminative cyanation of aldehydes and ketonesElectronic supplementary information (ESI) available: detailed experimental procedures. See http://www.rsc.org/suppdata/cc/b2/b203645b/
alpha-Amino nitriles are synthesized by the three-component coupling reaction of aldehydes, amines and trimethylsilyl cyanide using sulfamic acid as a heterogeneous solid acid catalyst, under solvent-free conditions in excellent yields. The catalyst was recovered by simple filtration and was recycled in subsequent reactions. (c) 2007 Elsevier Ltd. All rights reserved.