Short CommunicationEfficient epoxidation of chalcones with urea-hydrogen peroxide under ultrasound irradiation

Add time:09/24/2019    Source:sciencedirect.com

An efficient epoxidation of chalcones with urea-hydrogen peroxide (UHP) under ultrasound irradiation was carried out in 78–93% yields. Compared with the classical method, the advantages of protocol are to use a safer oxidant, mild conditions, no toxic solvent and shorter reaction time.

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