Synthesis of Benzofuropyridines and Dibenzofurans by a Metalation/Negishi Cross-Coupling/S<sub>N</sub>Ar Reaction Sequence
作者:Guy J. Clarkson、Stefan Roesner
DOI:10.1021/acs.joc.2c02111
日期:2023.1.6
methodology for the synthesis of benzofuropyridines and dibenzofurans from fluoropyridines or fluoroarenes and 2-bromophenyl acetates is reported. This streamlined one-pot procedure consists of a four-step directed ortho-lithiation, zincation, Negishi cross-coupling, and intramolecular nucleophilic aromatic substitution, allowing for the facile assembly of a diverse set of fused benzofuro heterocycles.
报道了一种从氟吡啶或氟芳烃和乙酸 2-溴苯酯合成苯并呋喃吡啶和二苯并呋喃的有效方法。这种简化的一锅法程序包括四步定向邻位锂化、锌化、Negishi 交叉偶联和分子内亲核芳族取代,允许轻松组装一组不同的稠合苯并呋喃杂环。