Tellurium in organic synthesis: a general approach to buteno- and butanolides

Abstract

The naturally occurring butanolides (-)-blastmycinolactol, (+)-blastmycinone, (-)-NFX-2, (+)-antimycinone as well as the four stereoisomers of the butenolide Acaterin were prepared in high enantiomeric purity using hydroxy-vinyl tellurides as starting materials. (C) 2012 Elsevier B.V. All rights reserved.