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Ghasimi, Saman; Bretschneider, Simon A.; Huang, Wei; Landfester, Katharina; Zhang, Kai A. I.
Advanced science, August 2017, Letnik: 4, Številka: 8Journal Article
The Stille coupling reaction is a versatile method to mainly form aromatic CC bonds. However, up to now, the use of palladium catalysts is necessary. Here, a palladium‐free and photocatalytic Stille‐type coupling reaction of aryl iodides and aryl stannanes catalyzing a conjugated microporous polymer‐based phototcatalyst under visible light irradiation at room temperature is reported. The novel coupling reaction mechanism occurs between the photogenerated aryl radical under oxidative destannylation of the aryl stannane, and the electron‐activated aryl iodide, resulting into the aromatic CC bond formation reaction. The visible light‐promoted Stille‐type coupling reaction using the polymer‐based pure organic photocatalyst offers a simple, sustainable, and more economic synthetic pathway toward palladium‐free aromatic CC bond formation. Bye‐bye palladium. A photocatalytic, Pd‐free Stille‐type coupling reaction between aryl iodides and aryl stannanes succeeds using conjugated organic phototcatalysts under visible light irradiation at room temperature.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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