Efficient Suzuki–Miyaura coupling reactions between lithium alkynyltrimethylborates and aryl chlorides

G Hernández Torres, S Choppin…

Index: Torres, Gloria Hernandez; Choppin, Sabine; Colobert, Francoise European Journal of Organic Chemistry, 2006 , # 6 p. 1450 - 1454

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Citation Number: 11

Abstract

Abstract The Pd-catalysed alkynylation of alkynylboronic esters (generated in situ) with various aryl chlorides in the presence of Pd 2 (dba) 3, the sterically hindered dihydroimidazolium salt 4 as the precatalyst and CsF is reported. Under these conditions, electron-poor and electron-rich aryl chlorides undergo efficient cross-coupling reactions.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)