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Title
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Homoleptic chelating N-heterocyclic carbene complexes of palladium immobilized within the pores of SBA-15/IL (NHCePd@SBA-15/IL) as heterogeneous catalyst for Hiyama reaction
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Type
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JournalPaper
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Keywords
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Hiyama reaction Heterocyclic carbene Ionic liquid NHCePd@SBA-15/IL Homoleptic carbene
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Abstract
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In this work, SBA-15 was selected as a support for the homoleptic chelating N-heterocyclic carbene complexes of palladium. Here, Pd2þ ions were coordinated to N-heterocyclic carbene (NHCePd) which also contain ionic liquid. Then, this NHCePd@SBA-15/IL catalyst (NHCePd active part of the catalyst) was successfully applied in the catalysis of Hiyama coupling reaction with lower mol% Pd rather to previously reported literatures. The role of TBAF and Cs2CO3 in the decrease of Pd mol% was crucial. Recyclability test showed a successful reusability for 5 runs. Simultaneous application of TBAF and NaOH did destroy the silica structure of SBA-15 in the first run.
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Researchers
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Esmail Doustkhah (Third Researcher), (Second Researcher), Sadegh Rostamnia (First Researcher)
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