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Regioselective sonochemical synthesis of genistein derivatives.

Wang SF, Ye YH, Zhang Z, Tan RX

Institute of Functional Biomolecules, State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, 210093, People's Republic of China.

Differential functionalization of the phenolic groups in genistein was carried out in excellent yields under ultrasonic irradiation. The isoflavone ring had proved to be unstable under stirring at 60 degrees C and phenyl benzyl ketone was unexpectedly isolated instead of the genistein derivative.

Published 14 October 2005 in Ultrason Sonochem, 13(1): 28-31.
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