Singly and doubly oxidized carbenes and their applications in catalysis DOI

Allan R. Day,

Mehdi Abdellaoui, Michèle Soleilhavoup

et al.

Chem Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 101159 - 101159

Published: Nov. 1, 2024

Language: Английский

NHC Catalyzed Radical Tandem Cyclization: An Efficient Synthesis of α,α-Difluoro-γ-lactam Derivatives DOI
Tianjiao Huang,

Huiping Yin,

Tuanjie Li

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(34), P. 6988 - 6998

Published: Jan. 1, 2024

Herein, an N-heterocyclic carbene (NHC) catalyzed radical tandem cyclization reaction of

Language: Английский

Citations

1
Photochemical Decarboxylative Radical Alkylation/Cyclization Reaction to Fused Nitrogen Heterocycles by LiI/PPh3 Catalysis DOI

Jia‐Li Sui,

Xin‐Qian Liu,

Shun‐Dan Li

et al.

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 10, 2024

Comprehensive Summary A visible‐light‐induced decarboxylative radical cascade cyclization reaction between N ‐(2‐cyanoaryl)‐acrylamides and alkyl ‐(acyloxy)phthalimide (NHPI esters) for the construction of phenanthridine derivatives has been developed. This approach utilizes lithium iodide (LiI) triphenylphosphine (PPh 3 ) as redox catalysts is produced through photoactivation electron donor‐acceptor (EDA) complex. series primary, secondary, tertiary alkyl‐substituted phenanthridines are prepared in up to 82% yield without transition‐metal catalysts, chemical oxidants, or metal‐/organic dye‐based photocatalysts.

Language: Английский

Citations

1
N-heterocyclic carbene switchable radical or benzyne meditated arylation of thiols using DMF/KOtBu DOI
Ben W. Greatrex, Johannes Puschnig

Synlett, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

Abstract A mild, metal, and photoredox-free direct arylation of alkyl aryl thiols with iodides using a DMF/KOt-Bu system has been developed. In the absence an N-heterocyclic carbene (NHC) additive, reaction proceeds via benzyne intermediate was suitable for substitution phenyl, while presence NHC or phenanthroline derivative improves regioselectivity substituted radical pathway. This protocol features inexpensive materials good substrate scope could be useful in thiols.

Language: Английский

Citations

0
Singly and doubly oxidized carbenes and their applications in catalysis DOI

Allan R. Day,

Mehdi Abdellaoui, Michèle Soleilhavoup

et al.

Chem Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 101159 - 101159

Published: Nov. 1, 2024

Language: Английский

Citations

0