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。