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Abstract
A review of our high throughput reaction screening data revealed that BippyPhos was frequently associated with successful outcomes in Buchwald – Hartwig amination reactions. A barrier to the wider use of this ligand, particularly among those performing smaller scale work, may be the lack of a readily available precatalyst. We describe the multi-gram synthesis and characterization of isopropylBippyPhos, and its conversion to isopropylBippyPhos Pd G2, a biaryl phosphine precatalyst. We demonstrate the competency of isopropylBippyPhos Pd G2 in palladium catalyzed Buchwald – Hartwig amination reactions and in Suzuki – Miyaura cross coupling reactions.
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