Mild and efficient one-pot synthesis of chiral β-chalcogen amides via 2-oxazoline ring-opening reaction mediated by indium metal
作者:Antonio L. Braga、Fábio Z. Galetto、Paulo S. Taube、Márcio W. Paixão、Claudio C Silveira、Devender Singh、Fabrício Vargas
DOI:10.1016/j.jorganchem.2008.08.031
日期:2008.11
A simple and efficient procedure for the synthesis of β-seleno and β-thio amides via the ring-opening reaction of chiral 2-oxazolines in the presence of indium metal has been developed. Features of this method include the following: (i) easily and accessible starting materials; (ii) indium metal is more stable and less expensive then its respective salts; (iii) useful to excellent yields of β-chalcogen