[2+ 1] cycloadditions of terminal alkynes to norbornene derivatives catalyzed by palladium complexes with phosphinous acid ligands

J Bigeault, L Giordano, G Buono

Index: Bigeault, Julie; Giordano, Laurent; Buono, Gerard Angewandte Chemie - International Edition, 2005 , vol. 44, # 30 p. 4753 - 4757

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Citation Number: 103

Abstract

Secondary phosphine oxides (SPOs) have been widely used for the synthesis of tertiary phosphine oxides and have found applications as Wittig–Horner reagents [1–2] and, later, as effective ligands for transition-metal complexes.[3] Recently, Li et al. showed that SPOs form air-stable palladium complexes, such as POPd1, when they are mixed with PdCl2 (MeCN) 2 and then treated with Et3N.[4] These complexes proved efficient as catalysts in ...