Abstract
Sulfonic-acid-functionalized silica was applied as an efficient heterogeneous acid catalyst in the Ritter reaction to prepare amides by reaction of various benzylic, allylic, and tertiary alcohols with various nitriles in good to excellent yields under solvent-free conditions. The simplicity of the reaction, recovery of catalyst without loss of reactivity, high yield of products, and short reaction time represent improvements over many existing methods.
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We gratefully acknowledge the financial support from the Research Council of Alzahra University and the University of Tehran.
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Mohammadi Ziarani, G., Badiei, A., Dashtianeh, Z. et al. Application of SiO2-Pr-SO3H as an efficient catalyst in the Ritter reaction. Res Chem Intermed 39, 3157–3163 (2013). https://doi.org/10.1007/s11164-012-0828-y
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DOI: https://doi.org/10.1007/s11164-012-0828-y