Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 68, Issue 9, Pages 3729-3732Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo0269114
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We have developed a modification of the Miyaura arylboronate synthesis(1a) by substituting a ligandless palladium catalyst for PdCl2(dppf). Palladium acetate, free of ligand, was found highly effective for such coupling reactions. This modified procedure is advantageous over the original Miyaura synthesis in ease of workup, catalyst removal, and low catalyst cost: Furthermore, the boronates formed in this manner can be used directly for Suzuki coupling reactions in a one-pot fashion. The biaryl products have improved impurity profiles and reduced heavy metal contamination.
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