Copper-and solvent-free Sonogashira coupling reactions of aryl halides with terminal alkynes catalyzed by 1-phenyl-1, 2-propanedione-2-oxime thiosemi-carbazone- …

M Bakherad, A Keivanloo, B Bahramian…

Index: Bakherad, Mohammad; Keivanloo, Ali; Bahramian, Bahram; Jajarmi, Saeedeh Applied Catalysis A: General, 2010 , vol. 390, # 1-2 p. 135 - 140

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Citation Number: 43

Abstract

A polystyrene-supported palladium (II) 1-phenyl-1, 2-propanedione-2-oxime thiosemi- carbazone (PPDOT) complex is found to be a highly active catalyst for the Sonogashira coupling reactions of aryl halides with terminal alkynes. The reactions can be performed under copper-and solvent-free conditions in an air atmosphere. The palladium catalyst is easily separated, and can be reused for several times without a significant loss in its ...