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Novel Bis(oxazole) Pincer Ligands for Catalysis: Application in Suzuki-Miyaura Cross Coupling Reactions under Aerobic Conditions

Luo, Qunli ; Eibauer, Stefan ; Reiser, Oliver
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Date of publication of this fulltext: 05 Aug 2009 13:40


Abstract

Introducing bis(oxazole) ligands to catalysis: novel bis(oxazole) ligands could be readily synthesized from isophthaloyl dichlorides and ethyl glycinate hydrochlorides or 6-aminoacetophenone hydrochloride. Their corresponding pincer palladium complexes proved to be extremely robust catalysts for Suzuki-Miyaura cross coupling reactions, allowing the synthesis of biaryls under aerobic conditions with turn over numbers of up to
790,000 and turn over frequencies of up to 49,000 h−1.


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