Improved ester interchange catalysts
Mixed alkoxide/aryloxide clusters are long-lived and milder than previously reported ester interchange catalysts. They completely transform difficult substrates in a single synthetic operation with lower catalyst and reagent ester loadings. In addition to superior activities, these mixed clusters are kinetically less basic toward enolizable esters.
Kissling
RM
Department of Chemistry, CB3290 Venable Hall, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA.
Gagne
MR