Secondary Phosphine Oxide Preligands for Palladium-Catalyzed C-H (Hetero)Arylations: Efficient Access to Pybox Ligands

Autor: Lutz Ackermann, Dietmar Stalke, Giuseppe Zanoni, Boryslav A. Tkachenko, Debasish Ghorai, Valentin Müller, Peter R. Schreiner, Helena Keil
Rok vydání: 2017
Předmět:
Zdroj: Advanced Synthesis & Catalysis. 359:3137-3141
ISSN: 1615-4150
Popis: C‒H arylations of oxazolines were accomplished with a well-defined palladium catalyst derived from a secondary bisdiamantyl phosphine oxide. The single-component secondary phosphine oxide (SPO)-palladium complex enabled C‒H activations with aryl bromides and challenging aryl chlorides in the absence of directing groups, setting the stage for the step-economical synthesis of pybox ligands under racemization-free reaction conditions.
Databáze: OpenAIRE
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