Neopentylglycolborylation of Aryl Mesylates and Tosylates Catalyzed by Ni-Based Mixed-Ligand Systems Activated with Zn
Journal of the American Chemical Society2010Vol. 132(6), pp. 1800–1801
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Daniela A. Wilson, Christopher J. Wilson, Costel Moldoveanu, Ana-Maria Resmeriță, Patrick Corcoran, Lisa M. Hoang, Brad M. Rosen, Virgil Percec
Abstract
The mixed-ligand system NiCl(2)(dppp)/dppf is shown to be an effective catalyst for the neopentylglycolborylation of ortho-, meta-, and para-substituted electron-rich and electron-deficient aryl mesylates and tosylates. The addition of Zn powder as a reductant dramatically increases the reaction yield and reduces the reaction time by more than an order of magnitude, providing complete conversion in 1-3 h.
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