This book provides informative, useful, and stimulating reading on the topic of organic sonochemistry - the core of ultrasound-based applications. Given the increasing interest in new and improved technologies, allied to their green and sustainable character (not always a valid premise), there is a great attraction for organic chemists to apply these protocols in synthesis and process chemistry. Unfortunately, as with other enabling technologies, many researchers new to the field have received a simple and dishonest message: just switch on! Therefore a significant portion of sonochemical syntheses lack reproducibility (surprisingly cavitation control and/or ultrasonic parameters are omitted) and the actual role of sonication remains uncertain. While this book does not provide a detailed description of fundamentals, the introductory remarks highlight the importance of cavitational effects and their experimental control. It presents a number of concepts of sonochemical reactivity and empirical rules with pertinent examples, often from classical and recent literature. It then focuses on scenarios of current interest where organic chemistry, and synthesis in particular, may benefit from sonication in terms of both chemical and mechanical activation. The "sustainable corner" of this field is largely exemplified through concepts like atom economy, renewable sources, wasteless syntheses, and benign solvents as reaction media.

This book is useful for both researchers and graduate students, especially those familiar with the field of sonochemistry and applications of ultrasound in general. However, it is also of interest to a broader audience as it discusses the fundamentals, techniques, and experimental skills necessary for scientists wishing to initiate the use of ultrasound in their domain of expertise.

Autorentext

During their careers, the authors have received training in organic sonochemistry, notably by pioneers such as Tim Mason, Takashi Ando and the late Jean-Louis Luche). Over the years they have contributed to the advancement of the field with research articles, reviews and book chapters. Giancarlo Cravotto is the former president of the European Society of Sonochemistry (ESS) and Pedro Cintas is a member of the board of this society. Jean-Marc Leveque is the executive editor for Europe of Ultrasonics Sonochemistry, which is one of the Sonochemistry Society's leading journals.

Inhalt

Cavitation and chemical reactivity (serving as Introduction, ca. 12-15 pp) including acoustic power measurements.- Efficient organic synthesis: what ultrasound makes it easier (ca. 15-20 pp) .- Sonication in neoteric solvents. A further look at synthetic plans (ca. 10-12 pp) .- Chemical modifications of renewable precursors: biomass valorization (ca. 10-12 pp) .- Gone with flow: miniaturization and safer chemistry (ca. 10-12 pp) .- Ultrasound as mechanical force (ca. 10-12 pp) .- Hybrid technologies in action: the US-MW reactor as prototype (ca. 10-12 pp) .- Scaling-up : Enabling the full potential of industrial applications of Ultrasound (ca. 10-12 pp)