Visible Light Photocatalysis of 6π Heterocyclization
作者:Niels Münster、Nicholas A. Parker、Lucy van Dijk、Robert S. Paton、Martin D. Smith
DOI:10.1002/anie.201705333
日期:2017.8.1
Photo-mediated 6π cyclization is a valuable method for the formation of fused heterocyclic systems. Here we demonstrate that irradiation of cyclic 2-aryloxyketones with blue LED light in the presence of an IrIII complex leads to efficient and high yielding arylation across a panoply of substrates by energy transfer. 2-Arylthioketones and 2-arylaminoketones also cyclize effectively under these conditions