Copper-catalyzed oxidative dehydrogenative [3 + 2] annulation of oximes with α-amino ketones: entry to 3-aminopyrroles DOI
Yan‐Yun Liu,

Ming Hu,

Jin‐Heng Li

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(20), P. 5806 - 5812

Published: Jan. 1, 2024

An unprecedented copper-catalyzed oxidative dehydrogenative [3 + 2] annulation of oximes with α-amino ketones involving dehydroxylation toward 3-aminopyrroles is disclosed.

Language: Английский

Decatungstate-photocatalyzed direct acylation of N-heterocycles with aldehydes DOI
Zhiyang Zhang,

Fukun Cheng,

Xinyu Ma

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(12), P. 7331 - 7336

Published: Jan. 1, 2024

A novel photocatalytic acylation strategy was developed harnessing tetrabutylammonium decatungstate (TBADT) as a hydrogen atom transfer (HAT) photocatalyst to facilitate the direct coupling of aldehydes with N-heterocycles at ambient temperature.

Language: Английский

Citations

17
Electrochemical Enaminone-Thioamide Annulation and Thioamide Dimeric Annulation for the Tunable Synthesis of Thiazoles and 1,2,4-Thiadiazole DOI

Qihui Huang,

Jianchao Liu, Jie‐Ping Wan

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(25), P. 5263 - 5268

Published: June 14, 2024

A green and sustainable electrochemical oxidative cyclization of enaminones with thioamides under metal- oxidant-free conditions has been developed, providing an efficient approach for thiazole synthesis. Furthermore, 1,2,4-thiadiazoles can be selectively accessed via the dimerization in absence enaminones.

Language: Английский

Citations

17
A visible-light-promoted metal-free approach for N–H insertions by using donor/donor diazo precursors DOI Creative Commons
Yu Zhang, Qiannan Li, Ping Wang

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(8), P. 4600 - 4608

Published: Jan. 1, 2024

A metal-free and catalyst-free strategy is reported to achieve N–H insertions by coupling N -tosylhydrazones with diverse amines including aminopyridines, anilines, aliphatic amines, other nucleophiles such as imidazoles indoles.

Language: Английский

Citations

11
Photoredox-catalyzed difunctionalization of alkenes with oxime esters and NH-sulfoximines DOI

Hao‐Cong Li,

Guannan Li,

Hao-Sen Wang

et al.

Organic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 11(1), P. 135 - 141

Published: Nov. 21, 2023

A visible-light-induced one-pot three-component reaction of cycloketone oxime esters, NH-sulfoximines, and alkenes was developed for the difunctionalization alkenes.

Language: Английский

Citations

16
Copper-Catalyzed Annulation of α,β-Unsaturated Ketoximes with Dialkyl Acetylenedicarboxylates for the Synthesis of Highly Substituted Pyridines DOI

Shi-Mei He,

Yunbo Yang,

Lv-Yan Liu

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

A copper-catalyzed [4 + 2] annulation protocol from readily available α,β-unsaturated ketoximes and dialkyl acetylenedicarboxylates has been achieved. The approach enables the expedient construction of a series structurally new highly substituted pyridines with good functional group tolerance.

Language: Английский

Citations

0
Multicomponent Modular Synthesis of Chiral Bicyclic Bridged Compounds via an Alkenylfuran-Based Acylation/Rearrangement/Cyclization Sequence DOI

Yu Tian,

H. Tao,

Kexin Yang

et al.

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

The catalytic asymmetric multicomponent acylation/rearrangement/cyclization of alkenylfurans with acyl oxime esters/arylamines or esters/arylamines/hydroxylamine has been developed. This method employs synergistic photoredox/Brønsted acid catalysis, enabling the efficient and versatile synthesis multifunctionalized [3.2.1] [4.2.1] bicyclic bridged compounds in high yields excellent diastereo- enantioselectivities.

Language: Английский

Citations

0
I2/Amine Synergistic Catalysis Enables 2,2’-Bipyridine Synthesis from Oxime Esters and Enals DOI
Xing Jin, Jiahao Zhou, Hao Zeng

et al.

Organic & Biomolecular Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

A synergistic I2/secondary amine catalysis has been developed for the modular assembly of 2,2'-bipyridines, employing oxime esters and enals as readily available starting materials. This method demonstrates a good substrate scope functional group tolerance can easily afford series structurally new 2,2'-bipyridines in moderate to yields.

Language: Английский

Citations

0
A Comprehensive Bibliometric Analysis of Green Buildings during 2013–2023 DOI
Wei Liu,

Q Chen,

Hai Ren

et al.

ICCREM 2021, Journal Year: 2025, Volume and Issue: unknown, P. 1760 - 1772

Published: March 26, 2025

Language: Английский

Citations

0
Copper-Catalyzed [3 + 2] Annulation of O-Acyl Oximes with 4-Sulfonamidophenols for the Synthesis of 5-Sulfonamidoindoles and 2-Amido-5-sulfonamidobenzofuran-3(2H)-ones DOI

Zi-Jun Hu,

Wei Chen,

Xinyu Lyu

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(20), P. 4229 - 4234

Published: May 13, 2024

A copper-catalyzed [3 + 2] annulation of

Language: Английский

Citations

3
Three-Component Ring-Expansion Reaction of Indoles Leading to Synthesis of Pyrrolo[2,3-c]quinolines DOI
Jinjin Chen,

Shuxin Jiang,

Weiliang Shi

et al.

Organic Letters, Journal Year: 2023, Volume and Issue: 25(37), P. 6886 - 6890

Published: Sept. 7, 2023

Herein, we have developed an atom- and step-economic three-component cascade reaction that enables a modular platform for the synthesis of pyrrolo[2,3-c]quinoline compounds through ring-expansion/cyclization by way novel N1–C2 cleavage indoles. The metal-free catalytic system exhibits broad functional group tolerance.

Language: Английский

Citations

7