Sequenced reactions with samarium(II) iodide. Intermolecular ketyl-olefin coupling/intramolecular nucleophilic acyl substitution for the preparation of six-, seven-, and eight-membered carbocycles

Abstract

A samarium(II) iodide-promoted sequence consisting of an intermolecular ketyl-olefin coupling followed by an intramolecular nucleophilic acyl substitution is described. This process leads to functionalized six- to eight-membered monocyclic and bicyclic ring systems in moderate to good yields.