A Facile Solvent-Free Cannizzaro Reaction

• Autores: Sonthi Phonchaiya, Bhinyo Panijpan, Shuleewan Rajviroongit, Tony Wright, Joanne T. Blanchfield
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 86, Nº 1 (January), 2009, págs. 85-86
• Idioma: inglés
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• Resumen

  • Liquid 2-chlorobenzaldehyde was converted, by grinding with potassium hydroxide pellets, into equimolar quantities of solid 2-chlorobenzoic acid and solid 2-chlorobenzyl alcohol in a Cannizzaro reaction. TLC, IR, and NMR experiments, using authentic samples for comparison, confirmed the identity and purity of the two products. Guided-inquiry pedagogy was employed as an instructional model for teaching this green chemistry laboratory to undergraduates who were responsible for partially designing their experiment.