The development of green and sustainable approaches for the synthesis of small molecules
is always in demand. Oxetanes and azetidines are strained heterocycles that possess …

We describe a catalyst, oxidant, and coupling‐reagent free strategy to access 4‐membered
heterocycles, representing a unique example of visible‐light triggered intramolecular …

A metal-and oxidant-free route for affording azaspiro [4.5] deca-6, 9-diene-3, 8-dione via
photomediated iodinated spirocyclization of N-(4-methoxybenzyl) propiolamide has been …

Abstract Intermolecular [2+ 2] photocycloadditions represent a powerful method for the
synthesis of highly strained, four-membered rings. Although this approach is commonly …

We report an example of non‐dearomative trifunctionalizing ipso‐spirocyclization of
unactivated alkenes through photoredox‐catalyzed, nitrogen‐radical‐triggered cyclization …

A convenient and versatile approach to important 1‐azaspirocyclic systems relevant to
medicinal chemistry and natural products is reported herein. The main strategy relies on a …

Background: Spiro [4.5] decenones are privileged structural motifs occurring in various
biologically active natural and unnatural compounds. Moreover, they are very important …

A deaminative alkyl radical cascade cyclization of 1, 7-dienes is described under visible-
light photocatalysis. This method delivers a family of benzoazepinones (benzazepinones) …

A temperature-regulated catalyst-free photoinduced selective carbene C–H insertion
strategy was realized to efficiently synthesize spiro-β-lactones and-lactams, which hold …

Visible-light-induced dearomatization reaction via energy-transfer mechanism is an
emerging strategy for the synthesis of highly strained polycyclic molecules. Transient, high …