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Photo catalysis is a powe

The cyclopropyl ring has highly strained C-C bonds with enhanced π-character and stronger C-H bonds than those in other alkanes. These features make cyclopropane not only a highly versatile synthetic intermediate but also a valuable structural motif both in natural products and commercially available drugs for enhancing the pharmaceutical properties.

In summary, the unique reactivity of the photo-induced nitroarene biradicals enabled this mild, safe, and practical procedure to selectively cleave alkenes under anaerobic conditions, thus providing a powerful and reliable alternative tool to oxidatively cleave olefins.