Fe3+-exchanged fluorotetrasilicic mica as an active and reusable catalyst for Michael reaction

Abstract Fe 3+ -exchanged fluorotetrasilicic mica acts as a highly effective and reusable catalyst for the solventless Michael reaction of β-ketoesters with vinyl ketones under mild condition. The immobilized catalyst shows higher activity than homogeneous Fe 3+ catalysts, FeCl 3 ·6H 2 O and Fe(NO 3 ) 3 ·9H 2 O.