SONOCHEMICAL ACTIVATION IN ORGANIC-SYNTHESIS .2.

Biphasic sonochemical reactions of interest for synthetic purposes wil l be exposed in this second part. When solids are present, a consisten t interpretation is difficult due to the superposition of several effe cts-mechanical, tribochemical. chemical-but their synthetic use is hig hly versatile. In some examples, sonication acts as a Physical phase t ransfer agent. Many organometallic reactions have been studied under s onication, and the preparation step is greatly improved, frequently pe rmitting one-step processes. The unexpected possibility to perform org anometallic chemistry in aqueous media constitutes an important achiev ement in sonochemistry.