Symmetrical Palladium (II) N,N,O,O-Schiff Base Complex: Efficient Catalyst for Heck and Suzuki Reactions

Wan Nazihah Wan Ibrahim, Mustaffa Shamsuddin

Faculty of Applied Science, Universiti Teknologi MARA, Shah Alam, Malaysia.
Faculty of Science, Universiti Teknologi Malaysia, Johor, Malaysia.

DOI: 10.4236/csta.2012.13005                

Abstract

Palladium is arguably the most versatile and most widely applied catalytic metal in the field of fine chemicals due to its high selectivity and activity. Palladium catalyst offers an abundance of possibilities of carbon-carbon bond formation in organic synthesis. In this research, three different Schiff base ligands have been prepared by condensation reaction between appropriate aldehyde or ketone with amine namely 2,2-dimethyl-1,3-propanediamine in the molar ratio of 2:1. The corresponding palladium (II) Schiff base complexes were prepared through the reaction between the Schiff base ligand with palladium (II) acetate in a molar ratio 1:1. FTIR, 1H-NMR and ¹³C-NMR spectroscopic data revealed that the ligands are N,N,O,O-tetradentate coordinated to the Pd atom through both the azomethine N atoms and phenolic O atoms. From X-ray Crystallographic analysis, it showed that the complex exists as square planar geometry. The synthesized palladium (II) Schiff base complexes were then subjected in catalytic Heck and Suzuki reaction of iodobenzene.

Keywords

Palladium (II) Schiff Base Complex; Heck Reaction; Suzuki Reaction

Conflicts of Interest

The authors declare no conflicts of interest.

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