Knoevenagel condensation of aldehydes with active methylene compounds catalyzed by MgC₂O₄/SiO₂ under microwave irradiation and solvent-free conditions

摘要

MgC₂O₄/SiO₂ catalyzes the efficient Knoevenagel condensation of aldehydes with active methylene compounds in solvent-free conditions under microwave irradiation to give alkenes derivatives in excellent yields. MgC₂O₄/SiO₂ can be reusable for Knoevenagel condensation. However, ketones have been found to be unsatisfactory in the reaction under the same conditions.