N,N’-bis-(5-Methyl-Methylsalicydene)-2,2-Dimethylpropane-1,3-Diamine Palladium(II) : Catalyst for Heck Reaction.

Wan Nazihah Wan Ibrahim, and Mustaffa Shamsuddin, and Bohari M. Yamin, (2007) N,N’-bis-(5-Methyl-Methylsalicydene)-2,2-Dimethylpropane-1,3-Diamine Palladium(II) : Catalyst for Heck Reaction. Malaysian Journal of Analytical Sciences, 11 (1). pp. 98-104. ISSN 13942506

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Affiliations

Universiti Teknologi Malaysia, Faculty of Science, Dept. of Chemistry
Universiti Teknologi Malaysia, Faculty of Science, Dept. of Chemistry
Universiti Kebangsaan Malaysia, Faculty of Science & Technology, School of Chemical Sciences and Food Technology

Abstract

A new palladium(II) complex of a Schiff base ligand, “N,N’-bis-(5-methyl-methylsalicylidene)-2,2-dimethylpropane-1,3-diamine” has been synthesized and characterized by analytical and spectroscopic data such as FTIR, 1H and 13C NMR spectroscopy, X-ray crystallography and CHN elemental analysis. The ligand acted as a N,N,O,O tetradentate ligand which the metal is coordinated to the azomethine nitrogen and phenolic oxygen. The palladium complex was tested as catalyst in the Heck reaction of iodobenzene with methyl acrylate in the presence of sodium hydrogen carbonate as base N,N-dimethylacetamide at reflux temperature (120°C). The activity of the catalyst was monitored by 1H NMR.

Kompleks palladium(II) dengan ligan bes Schiff, “N,N’-bis-(5-metil-metilsalisiliden)-2,2- dimetilpropan-1,3-diamina” yang baru telah berjaya disintesis dan diciri melalui data analisis dan data spektroskopi seperti FTIR, RMN 1H dan 13C spectroskopi, Kristallografi sinar-X dan analisis unsur CHN. Ligan ini berfungsi sebagai ligan tetradentat N,N,O,O dan terkoordinat kepada logam pusat melalui kedua-dua atom nitrogen azometina dan kedua-dua atom oksigen fenolik. Kompleks palladium ini telah diuji sebagai mangkin dalam tindakbalas Heck antara iodobenzena dan metil akrilat dalam N,N-dimetilasetamida dengan kehadiran bes natrium hidrogen karbonat pada suhu refluks (120°C). Aktiviti pemangkinan ini dipantau menggunakan RMN 1H.

Item Type:

Journal

Additional Information:

The authors would like to acknowledge the financial support from the Ministry of Science Technology and Innovation (MOSTI) for the IRPA funding 09-06-0057- R0005/09-05(Vot:74509) , Ibnu Sina Institute and Faculty of Science, UTM Skudai for the research facilitis.

Keywords:

Palladium, Schiff base, Heck reaction

Subjects:

Q Science

ID Code:

1016