New palladium catalyst immobilized on epoxy resin: synthesis, characterization and catalytic activity
PBN-AR
Instytucja
Centrum Badań Molekularnych i Makromolekularnych Polskiej Akademii Nauk
Źródłowe zdarzenia ewaluacyjne
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
APPLIED ORGANOMETALLIC CHEMISTRY
ISSN
0268-2605
EISSN
1099-0739
Wydawca
WILEY-BLACKWELL, 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
DOI
URL
Rok publikacji
2016
Numer zeszytu
1
Strony od-do
4-11
Numer tomu
30
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Język
angielski
Treść
A new thiol-functionalized epoxy resin as a support for palladium(II) complexes has been synthesized in good yields. A palladium catalyst was 'heterogenized' by anchoring [PdCl2(PhCN)(2)] complexes to these thiol-functionalized polymers via ligand exchange reaction. These new palladium catalysts were tested in Mizoroki-Heck coupling and hydrogenation reactions. The activity of the complexes in terms of yield is comparable to that of homogeneous PdCl2(PhCN)(2). The stability and a good recycling efficiency of these catalysts make them useful for prolonged use. The constant and good selectivity of the supported catalysts during recycling experiments indicate that they could be useful for practical application in many organic reactions. To characterize the heterogeneous complexes before and after use, X-ray photoelectron spectroscopy, infrared spectroscopy, scanning electron microscopy, energy dispersive X-ray microscopy, atomic absorption spectroscopy and time-of-flight secondary ion mass spectrometry were applied. Density functional theory calculations were also used to better understand the structures of the obtained palladium complexes. Polythiourethanes contain three atoms, oxygen, nitrogen and sulfur, capable of coordinating to transition metals. We examined the possibility of intra-and intermolecular binding for both cis and trans palladium complexes. Copyright (C) 2015 John Wiley & Sons, Ltd.
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System-identifier
PX-56aa323f81064d8e0ab0c663
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