Fully atom-economic access to spiro-cyclic skeletons through photoredox-induced hydrogen transfer/Giese addition/dearomative cyclization/protonation cascade

G Zeng, H Luo, K Jiang, J Cai, B Yin - Organic Chemistry Frontiers, 2024 - pubs.rsc.org
Herein, we report a fully atom-economic and highly step-economic cascade dearomatization
with non-activated phenyl and other hetero-aryl rings for access to aniline-tethered spiro …

Highly congested spiro-compounds via photoredox-mediated dearomative annulation cascade

C Zhou, A Shatskiy, AZ Temerdashev… - Communications …, 2022 - nature.com
Photo-mediated radical dearomatization involving 5-exo-trig cyclizations has proven to be
an important route to accessing spirocyclic compounds, whereas 6-exo-trig spirocyclization …

Nitrogen‐Radical‐Triggered Trifunctionalizing ipso‐Spirocyclization of Unactivated Alkenes with Vinyl Azides: A Modular Access to Spiroaminal Frameworks

Z Qi, Z Zhang, L Yang, D Zhang, J Lu… - Advanced Synthesis …, 2021 - Wiley Online Library
We report an example of non‐dearomative trifunctionalizing ipso‐spirocyclization of
unactivated alkenes through photoredox‐catalyzed, nitrogen‐radical‐triggered cyclization …

Molecular editing of pyrroles via a skeletal recasting strategy

X Zhou, Q Huang, J Guo, L Dai, Y Lu - ACS Central Science, 2023 - ACS Publications
Heterocyclic scaffolds are commonly found in numerous biologically active molecules,
therapeutic agents, and agrochemicals. To probe chemical space around heterocycles …

Rh-catalyzed hydroformylation-initiated bicyclization: Construction of azabicyclic systems

WH Chiou, KH Hsu, WW Huang - ACS omega, 2020 - ACS Publications
Here, we describe the recent progress toward construction of 1-azabicyclic structures using
a domino hydroformylation double cyclization strategy of an amide bearing the trisubstituted …

Dearomatization of unactivated arenes via catalytic hydroalkylation

KA McDaniel, AR Blood, GC Smith, NT Jui - ACS catalysis, 2021 - ACS Publications
The dearomative cyclization of linear amides to complex spirocyclic butyrolactams has been
enabled by photoredox catalysis through a reductive radical–polar crossover mechanism …

Hydroarylation of activated alkenes enabled by proton-coupled electron transfer

Z Liu, S Zhong, X Ji, GJ Deng, H Huang - ACS Catalysis, 2021 - ACS Publications
Hydroarylation of alkenes has been demonstrated to be an atom-economic approach to
access functionalized arenes from easily accessible raw materials. Herein, we report a …

Redox-triggered cascade dearomative cyclizations enabled by hexafluoroisopropanol

SS Li, X Lv, D Ren, CL Shao, Q Liu, J Xiao - Chemical Science, 2018 - pubs.rsc.org
An unprecedented cascade dearomative cyclization through hydrogen-bonding-assisted
hydride transfer is realized. The aggregate effect of HFIP enables the rapid buildup of …

Arylamine synthesis enabled by a photocatalytic skeletal-editing dehydrogenative aromatization strategy

YF Ren, XY Chen, HW Du, W Shu - Chem Catalysis, 2024 - cell.com
The construction of aromatic compounds from non-aromatic compounds via skeletal editing
is appealing yet challenging in organic chemistry. Herein, we report an approach for the …

Merging dearomatization with redox-neutral C (sp 3)–H functionalization via hydride transfer/cyclization: recent advances and perspectives

F Hu, YB Shen, L Wang, SS Li - Organic Chemistry Frontiers, 2022 - pubs.rsc.org
Dearomatization and direct C (sp3)–H functionalization represent two hot research fields in
organic synthesis, the merging of which is among the most challenging but appealing topics …