From Borane to Metal-Bound Boraindene: A Cascade of Bond Breaking and Making at Rhodium
Abstract
Few monobenzannulated 1-boraindene compounds have been reported. Here we report the synthesis of two 1-boraindenes, accessed by a bond-breaking and -making cascade from a secondary borane and diolefin, mediated by a simple pentamethylcyclopentadienyl-ligated rhodium(I) complex, [(Cp*)Rh(η2,η2-NBD)] (Cp* = C5Me5-, NBD = norbornadiene).
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