Ultrasonication Mediated Time Saving, High Yield & High Purity Organic Reactions- An Emerging Strategy in Green Chemistry

Abstract

The characteristic feature of ultrasonicator is that the mechanical energy in the form of high intensity, high- frequency sound waves is transferred to the reaction mixture. This results in the generation & the collapse of large number of minute bubbles throughout the mixture. This effect, which is known as cavitation, is responsible for the quick & through stirring of reaction mixture.

The present work describes the comparison of ultrasonic waves mediated organic syntheses with the conventional methods in respect of  % age yield, time for completion of the reaction & the purity of product. The reactions are selected which requires more stirring time for completion & carried out at ambient temperature. It concluded that the ultrasonic waves mediated organic reactions requires less time, gives high % age yield & high purity as compared to the conventional methods. In the present study, the organic reactions requiring maximum stirring at ambient temperature (without ice cold conditions) by conventional methods were compared with the ultrasonic mediated organic reactions.