Catalytic activity of Pd (II) and Pd (II)/DAB-R systems for the Heck arylation of olefins

GA Grasa, R Singh, ED Stevens, SP Nolan

Index: Grasa, Gabriela A.; Singh, Rohit; Stevens, Edwin D.; Nolan, Steven P. Journal of Organometallic Chemistry, 2003 , vol. 687, # 2 p. 269 - 279

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Citation Number: 110

Abstract

Palladium-catalyzed reactions of aryl bromides with various olefins involving Pd (II)/diazabutadiene (DAB-R) systems have been investigated. The scope of a coupling process using Pd (II) sources and an α-diimine as ligand in the presence of Cs2CO3 as base was tested using various substrates. The Pd (OAc) 2/DAB-Cy (1, DAB-Cy= 1, 4- dicyclohexyl-diazabutadiene) system presents the highest activity with respect to electron- ...