KF-melamine formaldehyde resin (KF-MFR) as a versatile and efficient heterogeneous reagent for aldol condensation of aldehydes and ketones under microwave irradiation

Abstract

KF-Melamine formaldehyde resin (KF-MFR) was demonstrated to be a highly efficient heterogenious catalyst for cross-aldol condensation under microwave irradiation. In this synthesis, various aldehydes and ketones were condensed together in the presence of supported KF on melamine-formaldehyde resin to afford different chalcone derivatives in good to excellent yields. KF-MFR proved to have unique termal and chemical resistance and can be reused for many consecutive runs without remarkable loss in catalytic activity. Copyright © 2011 SIOC, CAS, Shanghai & WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.