A Phosphane-Free, Atom-Efficient Cross-Coupling Reaction of Triarylbismuths with Acyl Chlorides Catalyzed by MCM-41-Immobilized Palladium Complex
作者： Hong Zhao , Lin Yin , Mingzhong Cai
关键词: Heterogeneous catalysis 、 Coupling reaction 、 Palladium 、 Green chemistry 、 Chemistry 、 Yield (chemistry) 、 Catalysis 、 Polymer chemistry 、 MCM-41 、 Organic chemistry 、 Denticity
摘要: The first phosphane-free, heterogeneous, atom-efficient cross-coupling reaction of triarylbismuths and acyl chlorides was achieved in N-methylpyrrolidone (NMP) with Bu3N as the base at 80 °C presence 1.5 mol-% MCM-41-immobilized bidentate nitrogen palladium complex [MCM-41–2N-Pd(OAc)2, MCM = mobile crystalline material] to yield a variety unsymmetrical biaryl ketones good excellent yields. This heterogeneous catalyst exhibited high activity, which similar that Pd(PPh3)4. can be recovered by simple filtration solution recycled least 10 consecutive trials without any decrease activity. Our system not only avoids use phosphane ligands, but also solves basic problem recovery reuse.
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