Selective Lithiation of 4-(1<i>H</i>-1-Pyrrolyl)pyridine. Access to New Electron-Releasing Ligands
作者:David Martineau、Philippe Gros、Yves Fort
DOI:10.1021/jo0496244
日期:2004.11.1
lithiation of 4-(1H-1-pyrrolyl)pyridine has been realized. The use of BuLi-containing lithium aggregates induced the selective pyridine ring functionalization by taking advantage of the electron-donor effect of the pyrrole nucleus. Opportune substituents were introduced α to the pyridinenitrogen leading to new electron-enriched pyridylphosphine, bipyridine, and terpyridine ligands.
已经实现了4-(1 H -1-吡咯基)吡啶的第一次锂化。通过利用吡咯核的电子给体效应,使用含有BuLi的锂聚集体诱导了选择性吡啶环官能化。将适当的取代基α引入吡啶氮中,得到新的电子富集的吡啶基膦,联吡啶和三联吡啶配体。