Tetrahedron letters

Palladium-catalyzed formation of diaryl ethers from aryl bromides. Electron poor phosphines enhance reaction yields

G Mann, JF Hartwig

文献索引：Mann, Grace; Hartwig, John F. Tetrahedron Letters, 1997 , vol. 38, # 46 p. 8005 - 8008

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被引用次数: 143

摘要

Aryl bromides were converted to diaryl ethers with sodium aryl oxides in the presence of catalytic amounts of Pd (DBA) 2 and DPPF. Isolated yields of over 90% were achieved in reactions with electron deficient aryl bromides and electron rich sodium aryl oxides. Electron poor DPPF derivatives led to increased reaction yields.© 1997 Elsevier Science Ltd.