The use of sonochemistry in the asymmetric epoxidation of substituted chalcones with sodium perborate tetrahydrate

摘要

The synthesis of optically pure compounds in a safe and efficient manner is an increasingly important area of organic chemistry. Enantioselectivity in the oxidation of substituted chalcones is induced by the use of a polyamino acid catalyst. By employing sodium perborate tetrahydrate as an oxidizing agent and an ultrasonic reaction vessel, reaction times and conditions are improved from those obtained conventionally. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 11]