Direct 2-arylation of thiophene using low loading of a phosphine-free palladium catalyst

S Bensaid, J Roger, K Beydoun, D Roy…

文献索引：Bensaid, Souhila; Roger, Julien; Beydoun, Kassem; Roy, David; Doucet, Henri Synthetic Communications, 2011 , vol. 41, # 23 p. 3524 - 3531

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被引用次数: 8

摘要

Abstract The direct coupling of aryl halides with thiophene would be a considerable advantage for sustainable development because of only HBr associated with a base as by- product is formed and the number of steps to prepare these compounds is less than in more classical coupling reactions. We observed that through the use of only 0.2 mol% Pd (OAc) 2 as the catalyst, a range of aryl bromides undergoes coupling via a CH bond activation/ ...