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Despite numerous studies on organic chromones, investigation on metalated chromene and chromone complexes lags far behind. In this work, metalated chromene and chromone complexes with superior antioxidative property were prepared by ruthenium‐mediated cyclization of phenol‐tethered ynone. The liberation of free chromone from the complexes was triggered by blue‐light irradiation. This work highlights...
The two families of RuII‐chromene and ‐chromone complexes isolated in this work represent the first examples of metalated chromene and chromone complexes synthesized through transition‐metal‐mediated cyclization of phenol‐tethered ynone. These unprecedented metalated heterocyclic compounds exhibit remarkable features, such as pH‐switchable metal–carbon bonding interactions, photo‐triggerable release...
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