Lithium perchlorate/diethylether-catalyzed three-component coupling reactions of aldehydes, hydroxylamines and trimethylsilyl cyanide leading to α-cyanohydroxylamines
Three-component coupling reactions of aldehydes, hydroxylamines and trimethylsilyl cyanide proceeded smoothly in the presence of lithium perchlorate/diethylether solution (5 M) to afford alpha-cyanohydroxylamine derivatives in high yields. (C) 2000 Elsevier Science Ltd. All rights reserved.
Efficient and mild Strecker-type reaction of nitrones catalyzed by MgI<sub>2</sub> etherate
ABSTRACT An efficient Strecker-type reaction of nitrones with trimethylsilyl cyanide (TMSCN) catalyzed by MgI2 etherate has been achieved in a short time under mild condition. The condensations of aromatic nitrones, heterocyclic nitrones, and aliphatic nitrones with TMSCN are performed in good to excellent yields. Further dehydration of α-cyanohydroxylamine smoothly produced the α-imine nitrile in