An Efficient Knoevenagel Condensation Catalyzed by LaCl3.7H2O in Heterogeneous Medium#

Abstract Knoevenagel condensation was carried out in absence of solvent with a mild Lewis acid Lanthanum(III) chloride, to prepare substituted alkenes. A systematic study of the reaction to establish the generality of the method has been undertaken with various aldehydes and active methylene compounds.