Abstract
AbstractThe Pd‐catalysed alkynylation of alkynylboronic esters (generated in situ) with various aryl chlorides in the presence of Pd2(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)
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