Ligand-Accelerated Iron Photocatalysis Enabling Decarboxylative Alkylation of Heteroarenes
作者:Zhenlong Li、Xiaofei Wang、Siqi Xia、Jian Jin
DOI:10.1021/acs.orglett.9b01439
日期:2019.6.7
A mild, practical protocol for the decarboxylative alkylation of heteroarenes has been accomplished via iron photocatalysis. A diverse range of carboxylic acids readily undergo oxidative decarboxylation and then couple with a broad array of heteroarenes in this transformation. The photoexcited state lifetimes of iron complexes are typically much shorter than those of iridium and ruthenium complexes. Here we describe our effort on iron photocatalysis by utilizing the intramolecular charge transfer pathway of iron-carboxylate complexes.
Preparation of Heteroaryloxetanes and Heteroarylazetidines by Use of a Minisci Reaction
作者:Matthew A. J. Duncton、M. Angels Estiarte、Russell J. Johnson、Matthew Cox、Donogh J. R. O’Mahony、William T. Edwards、Michael G. Kelly
DOI:10.1021/jo9010624
日期:2009.8.21
Introduction of oxetan-3-yl and azetidin-3-yl groups into heteroaromatic bases was achieved by using a radical addition method (Minisci reaction). To demonstrate utility. the process was used to introduce an oxetane Or azetidine into heteroaromatic systems that have found important uses in the drug discovery industry, such as the marketed EGFR inhibitor geftinib, a quinolinecarbonitrile Src tyrosine kinase inhibitor, and the antimalarial hydroquinine.