Organic Sonochemistry: Ultrasound in Green Organic Synthesis
Sonochimie organique : les ultrasons en synthèse organique verte
Résumé
Among the activation techniques available to meet concept of “green chemistry” or “sustainable chemistry”, the extraordinary properties of ultrasound and sonochemistry play an important role. Indeed, sonochemistry is simple to use. From the discovery of ultrasound to its use in green organic chemistry, this chapter provides an overview of the main applications of sonochemistry in organic chemistry and especially in “green organic chemistry”, with a particular focus on the work published in the literature including some elements on ultrasound theory and the equipment used to produce it. Based on the knowledge of the phenomenon of transient acoustic cavitation, the chapter proposes a mechanism for the formation of the various products of halocarbon sonolysis in aqueous media. It also provides relevant examples of the use of ultrasound, as an unconventional activation technique, for organic synthesis.
La sonochimie, une méthode simple à utiliser, permet d’effectuer des réactions chimiques sous ultrasons sans apport extérieur de chaleur, de réactifs, de catalyseurs. Elle conduit à des rendements élevés et à la production d’un minimum de déchets. L’ouvrage fait un tour d’horizon des principales applications de la sonochimie en chimie organique verte, se concentrant tout particulièrement sur les travaux publiés ces dernières années.