Photoredox-Catalyzed Divergent Radical Cascade Annulations of 1,6-Enynes via Pyridine N-Oxide-Promoted Vinyl Radical Generation

B Wang, J Singh, Y Deng - Organic letters, 2023 - ACS Publications
The divergent organophotoredox-catalyzed radical cascade annulation reactions of 1, 6-
enynes were developed. A series of cyclopropane-fused hetero-and carbo-bicyclic, tricyclic …

Photochemical Radical Bicyclization of 1, 5-Enynes: Divergent Synthesis of Fluorenes and Azepinones

BS Gore, CC Chen, PY Lin, JJ Wang - Organic Letters, 2024 - ACS Publications
A dual nickel-and iridium-photocatalyzed radical cascade bicyclization reaction for the
synthesis of highly complex molecular structures in an atom-and step-economic manner has …

Organophotoredox‐Catalyzed Cascade Radical Annulation of 2‐(Allyloxy)arylaldehydes with N‐(acyloxy)phthalimides: Towards Alkylated Chroman‐4‐one …

S Das, SK Parida, T Mandal, L Sing… - Chemistry–An Asian …, 2020 - Wiley Online Library
An organophotoredox catalyzed efficient and robust approach for the synthesis of highly
important 3‐alkyl substituted chroman‐4‐one scaffold is developed using visible light …

Controlled Photochemical Synthesis of Substituted Isoquinoline-1,3,4(2H)-triones, 3-Hydroxyisoindolin-1-ones, and Phthalimides via Amidyl Radical Cyclization …

MB Reddy, K Prasanth, R Anandhan - Organic Letters, 2022 - ACS Publications
We report a controlled radical cyclization cascade of isoquinoline-1, 3, 4 (2 H)-triones, 3-
hydroxyisoindolin-1-ones, and phthalimides from o-alkynylated benzamides by metal-free …

Visible-light-induced alkoxycarbonylation/cyclization of 1, 7-enynes: synthesis of dihydropyranones containing all-carbon quaternary centers

JQ Chen, Q Chen, B Chen, J Wu - Organic Chemistry Frontiers, 2023 - pubs.rsc.org
A direct photoredox catalyzed radical-triggered tandem cyclization of 1, 7-enynes with
alkyloxalyl chlorides is developed. With this approach, a variety of dihydropyranones …

Synthesis of O-Heterocycle Spiro-Fused Cyclopentaquinolinones and Cyclopentaindenes through Visible Light-Induced Radical Cyclization Reactions

L Xue, X Song, X Zhang, X Fan - The Journal of Organic …, 2023 - ACS Publications
Presented herein is an effective and sustainable synthesis of O-heterocycle spiro-fused
cyclopentaquinolinone and cyclopentaindene derivatives through light-driven cascade …

A lutidine-promoted Photoredox Catalytic Atom-transfer Radical Cyclization Reaction for the Synthesis of 4-Bromo-3, 3-dialkyl-octahydro-indol-2-ones

QS Zhao, GQ Xu, JT Xu, ZY Wang, PF Xu - Chemical Communications, 2020 - pubs.rsc.org
Reported herein is a visible-light-catalyzed photoredox atom-transfer radical cyclization
(ATRC) halo-alkylation of 1, 6-dienes with α-halo-ketones as the ATRC reagent. This …

A photoredox catalyzed radical–radical coupling reaction: facile access to multi-substituted nitrogen heterocycles

W Li, Y Duan, M Zhang, J Cheng, C Zhu - Chemical Communications, 2016 - pubs.rsc.org
Visible light induced photoredox catalysis is an efficient method for radical activation.
Herein, we report the photoredox catalysis involving an intramolecular radical–radical …

Photocatalytic annulation–alkynyl migration strategy for multiple functionalization of dual unactivated alkenes

Q Zhao, WJ Hao, HN Shi, T Xu, SJ Tu, B Jiang - Organic letters, 2019 - ACS Publications
A novel photoredox catalysis for multiple functionalization of two different types of
unactivated alkenes in a single operation was reported through a conceptually new mode of …

Photocatalytic Site‐Selective Cascade Radical Addition of Biaryl Ynones for the Construction of Spiro‐and Fused Carbon Rings

K Liu, C Zhao, L Gu, X Li, J Yan, S Lao… - Chinese Journal of …, 2024 - Wiley Online Library
Comprehensive Summary Functionalized free radical addition/cyclization reactions
represent an efficient way for introducing new functionality or coupling fragments to …