Amino-functionalized mesostructured cellular foam silica: A highly efficient and recyclable catalyst in the Knoevenagel condensation reaction
Amino-functionalized mesostructured cellular foam silica: A highly efficient and recyclable catalyst in the Knoevenagel condensation reaction
Mesostructured cellular foam silica was functionalized by an amino group (MCF-NH2) using the postsynthesis grafting method and utilized as a recyclable catalyst for the Knoevenagel reaction to afford α, β-unsaturated compounds. The catalyst was systematically characterized by various analyses such as nitrogen adsorption, X-ray diffraction, Fourier transform infrared spectrophotometry, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and Hammett indicato