کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1326654 | 977439 | 2011 | 5 صفحه PDF | دانلود رایگان |
Palladium-catalyzed cross-coupling reactions are one of the most frequently used synthetic tools for the construction of new carbon–carbon bonds in organic synthesis. The present study describes the use of palladium-polyaniline composite material as a catalyst for the Suzuki coupling of aryl halides. Palladium-polyaniline nanocomposite material was synthesized using an in-situ technique in which palladium acetate and aniline hydrochloride were used as the precursors of the composite. Electron microscopy imaging showed that the palladium particles were well-dispersed within the polymer matrix and were typically 3–5 nm in diameter. The metal-polymer composite material was used as a catalyst for the coupling of phenylboronic acid with aryl halides in the presence of an inorganic base and showed excellent yield with high TOF values.
Palladium-polyaniline composite material acts as a catalyst for the Suzuki coupling of aryl halides with phenylboronic acid. Palladium-polyaniline nanocomposite material was synthesized using an in-situ technique in which palladium acetate and aniline hydrochloride were used as the precursors of the composite.Figure optionsDownload as PowerPoint slideHighlights
► Polyaniline stabilized palladium nanoparticle-catalyzed Suzuki cross-coupling reactions show excellent performance in the presence of inorganic base under phosphine-free condition
► The metal-polymer hybrid catalyst was synthesized using an in-situ synthesis route.
Journal: Journal of Organometallic Chemistry - Volume 696, Issue 10, 15 May 2011, Pages 2206–2210