Asymmetric reactions in sonochemistry

Sonochemical processes involved in asymmetric synthesis are reviewed. The g oal of this overview is to provide a comprehensive picture about the fields of both enantioselective and diastereoselective reactions accelerated or i nitiated by ultrasounds. Since the most, in many cases comparative, data ar e available in heterogeneous metal catalysis, the emphasis will be placed o n these enantioselective hydrogenations, however, other applications such a s phase transfer catalysis etc, will also be cited. (C) 2001 Elsevier Scien ce B.V. All rights reserved.