The
Malaysian Journal of Analytical Sciences Vol 11 No 1 (2007): 98 – 104
N,N’-bis-(5-METHYL-METHYLSALICYLIDENE)-2,2-
DIMETHYLPROPANE-1,3-DIAMINE PALLADIUM(II) :
CATALYST FOR HECK REACTION
Wan Nazihah Wan Ibrahim1, Mustaffa
Shamsuddin *1 and Bohari M.
Yamin 2
1Department of Chemistry, Faculty of Science,
Universiti Teknologi Malaysia,
81310 Skudai,
Johor, Malaysia
2School of Chemical Sciences and Food Technology,
Faculty of Science & Technology,
Universiti
Kebangsaan Malaysia, 43650 Bangi, Selangor, Malaysia
*Corresponding
author: mustaffa@kimia.fs.utm.my
Abstract
A new palladium(II) comp lex 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 in which the
metal is coordinated to the azomethine nitrogen and phenolic oxygen. The palladium
complex was tested as a catalyst in the Heck reaction of iodobenzene with
methyl acrylate in the presence of sodium hydrogen carbonate as base in N,N-dimethylacetamide
at reflux temperature (120°C). The activity of the catalyst was monitored by 1H
NMR.
Keywords: Palladium,
Schiff base, Heck reaction
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