Tetrahedron letters

High intensity ultrasound-assisted reduction of sterically demanding nitroaromatics

GA Heropoulos, S Georgakopoulos, BR Steele

Index: Heropoulos, Georgios A.; Georgakopoulos, Spyros; Steele, Barry R. Tetrahedron Letters, 2005 , vol. 46, # 14 p. 2469 - 2473

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Citation Number: 24

Abstract

Sterically demanding nitroaromatic compounds have been prepared and reduced to their corresponding amines with high intensity ultrasound using hydrazine in the presence of a Raney nickel catalyst. These reactions were dependent on catalyst quality, solvent and ultrasonic amplitude and, in comparison to their silent reactions, proceeded much faster and afforded higher yields.

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