Published April 6, 2017 | Version v1

Visible light photocatalysis of 6pi-heterocyclization

  • 1. University of Oxford

Description

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. Quantum calculation demonstrates that the reaction proceeds via conrotatory ring closure in the triplet excited state. Subsequent suprafacial 1,4‐hydrogen shift and epimerization leads to the observed cis‐fused products.

This data-set contains the output files from DFT calculations performed for this work, along with GoodVibes thermochemistry outputs

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Additional details

Funding

European Commission
NATCAT - Emulating Nature through Asymmetric Catalysis 259056