Regioselective iridium(I)-catalysed remote borylation of oxygenated naphthalenes
作者:Paul Hume、Daniel P. Furkert、Margaret A. Brimble
DOI:10.1016/j.tetlet.2012.05.040
日期:2012.7
We present our investigations into the regioselective borylation and halogenation of polyoxygenated naphthalene systems that are key precursors to dimeric pyranonaphthoquinone natural products. A variety of oxygenated naphthalenes were successfully borylated with pinacolborane in high yield and excellent regioselectivity using [Ir(COD)OMe]2 and di-tert-butylbipyridine (dtbpy). The boronates were also