摘要
The 2-((2-benzylamino)phenyldiazenyl)phenol, H 2 OL [where H 2 OL = ArOHN = NC 6 H 4 N(H)CH 2 (C 6 H5); Ar = C 6 H 5 (for H2OL 1 ), p-MeC 6 H 4 (for H 2 OL 2 ) or p-ClC 6 H 4 (for H 2 OL 3 )], ligands were prepared by the reaction of the appropriate 2-((2-hydroxyaryl)azo)anilines with benzyl bromide. The reactions of Na 2 PdCl 4 with H 2 OL afforded tetranuclear Pd(II) complexes of the composition [Pd(OL)] 4 . The ligands bind palladium(II) in a tridentate (N, N, O) fashion. The X-ray structure of [Pd(OL 1 )] 4 was determined to confirm the characterization. The newly synthesized [Pd(OL 1 )] 4 complex was utilized as a catalyst for the Suzuki and Heck reaction for a variety of substrates. © 2013 Elsevier Ltd. All rights reserved.