α-Phenylselanyl imines: preparation of β-phenylselanyl amines and original synthesis of allylaziridines
摘要:
Resorting to suitable methods, a wide variety of alpha-phenylselanyl imines 2-5 were prepared from alpha-phenylselanyl aldehydes and alpha-phenylselanyl ketones 1. These compounds were reduced to afford beta-phenylselanyl amines 6-9. Our experimental conditions have limited the well known deselenenylation side-reaction occurring with most hydrides. On the other hand, the reaction of alpha-phenylselanyl imines 2 with organometallics led to the expected addition products only in the case of allylated derivatives. Depending on the temperature, either alpha-phenylselanyl amines 11 or unexpected allylaziridines 12 were recovered. (C) 2004 Elsevier Ltd. All rights reserved.
Decarboxylative ring-opening of 2-oxazolidinones: a facile and modular synthesis of β-chalcogen amines
作者:Fábio Z. Galetto、Cleiton da Silva、Ricardo I. M. Beche、Renata A. Balaguez、Marcelo S. Franco、Francisco F. de Assis、Tiago E. A. Frizon、Xiao Su
DOI:10.1039/d2ra06070a
日期:——
We report herein the synthesis of primary and secondary β-chalcogen amines through the regioselective ring-opening reaction of non-activated 2-oxazolidinones promoted by in situ generated chalcogenolate anions. The developed one-step protocol enabled the preparation of β-selenoamines, β-telluroamines and β-thioamines with appreciable structural diversity and in yields of up to 95%.