Nice example of a C-H oxygenation. These ortho positions are for some reason very reactive towards oxygenation. I remember seeing several examples like these. You can also see a lot of C-H activation examples at these positions. Here they were able to fully characterize an intermediate XAS, X-ray, Mossbauer etc. I like these complexes, how they are synthesized and what they can do.
OPEN ACCESS!
http://onlinelibrary.wiley.com/doi/10.1002/anie.201701319/epdf
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