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Polyaniline-supported palladium(II)-schiff base complex as efficient catalyst for mizoroki-heck cross-coupling reaction

Che Soh, Siti Kamilah and Shamsuddin, Mustaffa (2012) Polyaniline-supported palladium(II)-schiff base complex as efficient catalyst for mizoroki-heck cross-coupling reaction. Malaysian Journal of Fundamental and Applied Sciences, 8 (2). pp. 94-100. ISSN 1823-626X

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Abstract

Mizoroki-Heck cross-coupling reaction of 4-bromoacetophenone with methyl acrylate were investigated as a model system of heterogeneous reaction in order to evaluate the performance of polyaniline supported N,N’-bis(3,5-di-tert butylsalicylidene)propane-1,3-diaminepalladium(II) complex as catalyst. The reactions were carried out in both N,N-dimethylacetamide (DMAc) and waterDMAc mixed solvent. The performances of the catalyst in both media are comparable, giving more than 90 % conversion after 24 hours of reaction with 100 % selectivity and high isolated product yields of cinnamic esters were obtained. The used of mixed solvent gave more advantages such as less organic solvent was required and an enhanced recyclability in which the supported catalyst could be reusable at least four times without noticeable decrease in the product conversion. The properties of the catalyst was characterized by various techniques such as FTIR spectroscopy, TG-DTA, AAS, BET surface area, XRD and FESEM.

Item Type:Article
Additional Information:UTM Open Access Journal
Uncontrolled Keywords:borophosphate glass, lithium, calcium, transition metal ions, photoluminescence
Subjects:Q Science > Q Science (General)
Q Science > QC Physics
Divisions:Biosciences and Bioengineering (Formerly known)
ID Code:29082
Deposited By: Siti Norfaridatul Azian Che Soh
Deposited On:13 Mar 2013 11:46
Last Modified:13 Mar 2013 11:46

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