Abstract:A method to cleave the C–C biaryl bond of binaphthyl
derivatives
under reductive conditions is described. Triflic acid employed together
with a catalytic HAT reagent, 2-ethyl-9,10-dihydroxyanthracene, that
is regenerated using H2 with catalytic Pd/C yielded monomeric
products in improved yields. A range of substrates is disclosed, and
kinetic analyses provide insight into the mechanism of aryl–aryl
activation.
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