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 Ir(III) 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. Quantum calculation demonstrates that the reaction proceeds via conrotatory ring closur...Expand abstract
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- (MU 3987/1-1) for a fellowship (to N.M.)
- Centre for Doctoral Training in Synthesis for Biology and Medicine (EP/ L015838/1) for studentships (to N.A.P. and L.V.D.)
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- Angewandte Chemie Journal website
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- Münster et al.
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Visible light photocatalysis of 6π heterocyclization
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