Palladium-catalysed direct arylations of heteroaromatics bearing dicyanovinyls at C2
作者:Younes Bouazizi、Kassem Beydoun、Anis Romdhane、Hichem Ben Jannet、Henri Doucet
DOI:10.1016/j.tetlet.2012.10.008
日期:2012.12
The palladium-catalysed direct 5-arylation of heteroaromatics bearing dicyanovinyls at C2 with aryl bromides via C–H bond functionalisation allows the synthesis of a variety of new conjugated systems in only one step. The nature of the solvent was found to be crucial to perform such arylations. In DMAc, complete decomposition of the dicyanovinyl derivatives was observed, whereas they were found to
钯催化的C2处带有双氰基乙烯基的杂芳族化合物与芳基溴化物通过C–H键官能化直接进行5芳基化,仅需一步即可合成多种新的共轭体系。发现溶剂的性质对于进行这种芳基化至关重要。在DMAc中,观察到二氰基乙烯基衍生物完全分解,而发现它们在环戊基甲基醚中稳定。