Photoinduced Radical Cyclization of 2-Alkynylthioanisoles with Disulfides without an External Photocatalyst DOI

Yan HAN,

Fen-Dou Wang,

Min Wang

et al.

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(21), P. 15288 - 15297

Published: Oct. 23, 2023

An efficient strategy for the synthesis of 3-arylthiobenzo[b]thiophenes via a photodriven radical cyclization 2-alkynylthioanisoles with disulfide was developed. The reaction proceeded smoothly under visible-light irradiation without any external photocatalyst and generated desired products in high yields good functional group tolerance.

Language: Английский

EDA Complex-Enabled Annulation to Access CF2-Containing Tetralones and Quinazolinones Using Persulfates as Electron Donors DOI
Shupeng Zhang, Dawei Guo,

Mei-Ling Yang

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(15), P. 10614 - 10623

Published: July 25, 2024

A photocatalyst-free and EDA complex-enabled radical cascade cyclization reaction of inactive alkenes with bromodifluoroacetamides was reported for the divergent synthesis fluorine-containing tetralones quinazolinones. In this transformation, persulfates as electron donors difluoro bromamide acceptors generate complex. This is a promising photochemical method advantages such mild conditions, simple operation, being metal-free, excellent functional group tolerance.

Language: Английский

Citations

6
Visible-Light-Induced 4CzIPN-Catalyzed Alkylamination of Alkenes via Cyclobutanone Oxime Esters and Anilines DOI
Jianghong Liu, Zeyu Tian,

Zhen-Ye Wu

et al.

The Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

We disclosed an organophotoredox-catalyzed three-component oxidative radical-polar crossover strategy for constructing 1,2-alkylamination products. Cycloketone oxime derivatives were used as cyanoalkyl radical precursors and anilines the nucleophiles. This facile protocol shows a good reaction yield broad substrate scope.

Language: Английский

Citations

0
Photocatalytic Electrocyclization for the Synthesis of Dihydrophenanthrenes DOI

Saumya Singh,

Ruchir Kant,

Chandra Bhushan Tripathi

et al.

Asian Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 13(3)

Published: Jan. 23, 2024

Abstract A visible light induced electrocyclization for synthesizing dihydrophenathrenes is reported. The readily available organic photocatalyst 4‐CzIPN enables α‐addition to enones in good yield (up 95 %). This 6π‐electrocyclization proposed proceed through a photosensitization pathway and it avoids the use of high energy UV light.

Language: Английский

Citations

2
Visible-light-induced halocyclization of 2-alkynylthioanisoles with simple alkyl halides towards 3-halobenzo[b]thiophenes without an external photocatalyst DOI

Fen-Dou Wang,

Chunmiao Wang, Min Wang

et al.

Organic & Biomolecular Chemistry, Journal Year: 2023, Volume and Issue: 21(40), P. 8170 - 8175

Published: Jan. 1, 2023

A new strategy for the preparation of 3-halobenzo[b]thiophenes via a photo-driven halocyclization/demethylation 2-alkynylthioanisoles with simple alkyl halides was developed. The reaction can proceed smoothly at room temperature under visible-light irradiation without any external photocatalyst, and protocol has range advantages, including simplicity mildness conditions, good functional-group tolerance, excellent yields products.

Language: Английский

Citations

6
Photoinduced Radical Cyclization of 2-Alkynylthioanisoles with Disulfides without an External Photocatalyst DOI

Yan HAN,

Fen-Dou Wang,

Min Wang

et al.

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(21), P. 15288 - 15297

Published: Oct. 23, 2023

An efficient strategy for the synthesis of 3-arylthiobenzo[b]thiophenes via a photodriven radical cyclization 2-alkynylthioanisoles with disulfide was developed. The reaction proceeded smoothly under visible-light irradiation without any external photocatalyst and generated desired products in high yields good functional group tolerance.

Language: Английский

Citations

6