Tetrahedron

Neopentylphosphines as effective ligands in palladium-catalyzed cross-couplings of aryl bromides and chlorides

…, J Porter, J Chou, CJ Wolterman, R Craciun, DA Dixon…

文献索引：Hill, Lensey L.; Smith, Joanna M.; Brown, William S.; Moore, Lucas R.; Guevera, Paul; Pair, Emily S.; Porter, Jake; Chou, Joe; Wolterman, Christopher J.; Craciun, Raluca; Dixon, David A.; Shaughnessy, Kevin H. Tetrahedron, 2008 , vol. 64, # 29 p. 6920 - 6934

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被引用次数: 46

摘要

The use of neopentylphosphine ligands in the palladium-catalyzed Suzuki, Sonogashira, Heck, and Hartwig–Buchwald couplings of aryl bromides and chlorides are reported. Di-tert- butylneopentylphosphine (DTBNpP) provided highly active catalysts for the coupling of aryl bromides at mild temperatures. Trineopentylphosphine, an air-stable trialkylphosphine, gave inactive catalysts at room temperature, but showed good activity in the H–B amination of ...