Sulfonylation/cyclization of alkynes with sulfonyl chlorides by copper catalysis DOI
Lin Chen, Chenchen Wang, Yu Sun

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(47), P. 19746 - 19749

Published: Jan. 1, 2024

A gentle and remarkably effective copper-catalyzed method for the cascade sulfonylation of alkynes using sulfonyl chlordies as direct sulfonylating reagents, is presented.

Language: Английский

Recent advances in multicomponent synthesis of pyrazoles DOI
Jing Zhou,

Quan‐Quan Zhou,

Jie‐Ping Wan

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Pyrazole moiety is considered as an important N-heterocycle in pharmaceuticals and many other functional molecules. The utilization of multicomponent reaction a major tool the current approaches pyrazole synthesis. Considering power significance synthesis, we review herein latest developments this field. According to typical features, contents are divided into reactions with different NN fragment sources, such hydrazine, hydrazone, amidine, nitrile, diazo compounds, ring construction, covering works published since 2019 date.

Language: Английский

Citations

6
Radical-mediated sulfonylation relay of alkyl alkynes/alkenes and electron-deficient alkenes to access vinyl and alkyl sulfones DOI
Jinhui Liu,

Fang Long,

Qing Li

et al.

Organic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A radical-mediated sulfonylation relay of alkyl alkynes/alkenes with electron-deficient alkenes using Na 2 S O 4 as a linker is developed to synthesize highly selective ( Z )-vinyl and sulfones under metal-free catalyzed system.

Language: Английский

Citations

0
Regio- and Stereoselective β-Sulfonylamination of Alkynes via Photosensitized Bifunctional N–S Bond Homolysis DOI

Tonglv Pu,

Si‐Hai Wu,

Liuyan Cai

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Nitrogen central radicals (NCRs) are versatile synthetic intermediates for creating functional nitrogen-containing molecules. Herein, a photosensitized β-sulfonylamination of terminal alkynes as well acetylene has been established by employing N-sulfonyl heteroaromatics bifunctional reagents (BFRs) to efficiently deliver (E)-β-sulfonylvinylamines with excellent regio- and stereoselectivities. Mechanistic studies suggest base-accelerated energy transfer (EnT) photocatalysis involving aromatic NCR formation, radical addition alkynes, sulfonylation processes.

Language: Английский

Citations

1
Photoredox/Iron Dual-Catalysis-Enabled [4 + 2] Cyclization of Acyl Nitrene with Alkynes DOI
Shimin Xie,

Shuwang Tang,

Ming Hou

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

In this work, the annulation of acyl nitrene with alkynes is reported under photoredox/iron dual-catalysis for synthesis a series isoquninalin-2-ones. The reaction featured high regioselectivity and good generality. particular, resulting isoquinalin-2-ones could be structurally elaborated into several biologically interesting scaffolds. Mechanism investigation suggests that was ascribed to formal [4 + 2] cyclization. It believed represents an initial example preparing isoquinolin-1-ones from ferric peroxyl-catalyzed insertion.

Language: Английский

Citations

1
Sulfonylation/cyclization of alkynes with sulfonyl chlorides by copper catalysis DOI
Lin Chen, Chenchen Wang, Yu Sun

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 48(47), P. 19746 - 19749

Published: Jan. 1, 2024

A gentle and remarkably effective copper-catalyzed method for the cascade sulfonylation of alkynes using sulfonyl chlordies as direct sulfonylating reagents, is presented.

Language: Английский

Citations

0