A General Strategy Toward Aromatic 1,2-Ambiphilic Synthons: Palladium-Catalyzed ortho-Halogenation of PyDipSi-Arenes
作者:Alexander S. Dudnik、Natalia Chernyak、Chunhui Huang、Vladimir Gevorgyan
DOI:10.1002/anie.201004426
日期:2010.11.8
A general and efficient strategy to synthesize 1,2‐ambiphilic aromatic and heteroaromatic synthons from haloarenes has been developed. The method involves installation of the PyDipSi directing group, and subsequent palladium‐catalyzed directed ortho‐halogenation of aryl silanes (see scheme; Py=2‐pyridyl). The usefulness of these 1,2‐ambiphilic building blocks was shown in their participation as both