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
已经开发出一种从卤代芳烃合成 1,2-双亲芳香族和杂芳香族合成子的通用且有效的策略。该方法涉及安装 PyDipSi 定向基团,以及随后的钯催化芳基硅烷的定向邻位卤化(参见方案;Py=2-吡啶基)。这些 1,2-双亲性结构单元的有用性体现在它们作为亲核芳基硅烷和亲电子芳基碘化物部分的参与。