Synthesis of α-amino nitriles through Strecker reaction of aldimines and ketoimines by using nanocrystalline magnesium oxide
作者:M. Lakshmi Kantam、Koosam Mahendar、Bojja Sreedhar、B.M. Choudary
DOI:10.1016/j.tet.2008.01.128
日期:2008.4
Strecker reactions of various aldimines as well as ketoimines with TMSCN proceeded smoothly under mild conditions to give the corresponding alpha-amino nitriles and alpha,alpha-disubstituted alpha-amino nitriles, respectively, in good to excellent yields in the presence of nanocrystalline magnesium oxide. The reaction proceeds through hypervalent silicate species by coordination to O2-/O- (Lewis basic site) of nanocrystalline magnesium oxide, proved by Si-29 NMR. (C) 2008 Elsevier Ltd. All rights reserved.