Reposted by Andrew Pun
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"Red light mediated energy transfer catalysis via stable organic radicals" by Andrew Brian Pun and colleages.
💡 Stable organic radicals enable versatile red-light photocatalysis without rare metals
Read for free: doi.org/10.1039/d6sc...
![Graphical abstract illustrating a stable organic radical photocatalyst for red-light-driven energy-transfer reactions. On the left, the molecular structure of a chlorinated triarylmethyl radical catalyst is shown inside a red circle, alongside labels highlighting its key features: air tolerance, metal-free composition, and activation by red light. In the centre, a doublet-to-triplet energy transfer (DTEnT) process transfers excitation energy from the catalyst to a range of organic substrates. On the right, representative transformations are shown, including photooxidation, cyclisation, [2+2] cycloaddition, and azo compound isomerisation, demonstrating the broad applicability of the catalyst. The figure emphasises the use of a stable, rare-metal-free organic radical to promote diverse photochemical reactions under red-light irradiation.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:ztf52qr22zoguidj6uprs6az/bafkreibiztl6rr3jhqrwzf53fdguui5begf7mpx4vwcb47snzhj4ol6oea)
