Recent Advances in the Electrochemical Functionalization of Imidazoheterocycles DOI
Sifeng Li

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Abstract Imidazoheterocycles have extensive applications in the pharmaceutical industry and agrochemicals. A comprehensive overview has been provided on current advancements electrochemical functionalization of imidazo‐fused heterocycles, which classified into ten different types reactions. Electrochemical synthesis emerged as a highly effective method for producing organic molecules, especially context sustainable development. Employing electrons traceless oxidant, several C−H reactions heterocycles achieved at either C3 or C5 positions. Electrons may serve reducing agent to synthesize pyridine rings that are partially fully saturated imidazo[1,2‐ ]pyridines. The purpose review is attract interest scientific community promote additional research imidazoheterocycles using methods.

Language: Английский

Acyl Radicals from α-Keto Acids: Metal-Free Visible-Light-Promoted Acylation of Heterocycles DOI
Hu-Lin Zhu,

Fan‐Lin Zeng,

Xiaolan Chen

et al.

Organic Letters, Journal Year: 2021, Volume and Issue: 23(8), P. 2976 - 2980

Published: March 29, 2021

A general and metal-free visible-light-induced decarboxylative arylation procedure at room temperature was described for the construction of acylated heterocyclic derivatives, such as benzimidazo/indolo[2,1-a]isoquinolin-6(5H)-ones, aroylazaspiro[4.5]trienones, thioflavones, so on. This practical conducted by using 2,4,5,6-tetra(9H-carbazol-9-yl)isophthalonitrile (4CzIPN) a photocatalyst under mild conditions, which avoided use an additional base, traditional heating, metal reagents.

Language: Английский

Citations

123

Visible light-induced recyclable g-C3N4 catalyzed thiocyanation of C(sp2)–H bonds in sustainable solvents DOI

Fan‐Lin Zeng,

Hu-Lin Zhu, Xiaolan Chen

et al.

Green Chemistry, Journal Year: 2021, Volume and Issue: 23(10), P. 3677 - 3682

Published: Jan. 1, 2021

A metal-free photocatalytic strategy for the preparation of thiocyanated heterocycles from inexpensive NH4SCN has been developed using carbon nitride (g-C3N4) as a general heterogeneous catalyst.

Language: Английский

Citations

117

Alkyl radicals from diacyl peroxides: metal-/base-/additive-free photocatalytic alkylation of N-heteroaromatics DOI

Fukun Cheng,

Lulu Fan, Qi‐Yan Lv

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(20), P. 7971 - 7977

Published: Jan. 1, 2023

Alkyl diacyl peroxides were demonstrated to be efficient alkylating reagents for the visible-light-induced 4CzIPN-catalyzed direct C–H alkylation of N -heteroaromatics.

Language: Английский

Citations

47

Enroute sustainability: metal free C–H bond functionalisation DOI

Sayan Roy,

Subir Panja, Sumeet Ranjan Sahoo

et al.

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 52(7), P. 2391 - 2479

Published: Jan. 1, 2023

The metal-free C–H functionalisation is providing environmentally benign, cost-effective, sustainable catalytic systems. Comprehensive developments of various reactions are the focal point this review.

Language: Английский

Citations

44

Metal-Free Photosynthesis of Alkylated Benzimidazo[2,1-a]isoquinoline-6(5H)-ones and Indolo[2,1-a]isoquinolin-6(5H)-ones in PEG-200 DOI

Hao‐Cong Li,

Kai Sun, Xiang Li

et al.

The Journal of Organic Chemistry, Journal Year: 2021, Volume and Issue: 86(13), P. 9055 - 9066

Published: June 23, 2021

A visible-light-induced decarboxylation reaction was developed for the synthesis of alkylated benzimidazo[2,1-a]isoquinoline-6(5H)-ones and indolo[2,1-a]isoquinolin-6(5H)-ones under metal-free conditions. Impressively, metal catalysts traditionally volatile organic solvents could be effectively avoided.

Language: Английский

Citations

59

Transition-metal-free three-component acetalation-pyridylation of alkenes via photoredox catalysis DOI
Chunhua Ma, Yu Ji, Jie Zhao

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2022, Volume and Issue: 43(3), P. 571 - 583

Published: Feb. 2, 2022

Language: Английский

Citations

46

Functionalization of imidazo[1,2-a]pyridinesviaradical reactions DOI
Chunhua Ma, Ming Chen,

Zhi‐Wen Feng

et al.

New Journal of Chemistry, Journal Year: 2021, Volume and Issue: 45(21), P. 9302 - 9314

Published: Jan. 1, 2021

The recent advances in radical reactions for the direct functionalization of imidazo[1,2-a]pyridines are reviewed.

Language: Английский

Citations

47

Visible-Light-Induced Highly Site-Selective Direct C–H Phosphorylation of Pyrrolo[2,3-d]pyrimidine Derivatives with H-Phosphine Oxides DOI
Zhuo Zhang, Mingrui Liu, Min Liu

et al.

The Journal of Organic Chemistry, Journal Year: 2024, Volume and Issue: 89(5), P. 2996 - 3009

Published: Feb. 15, 2024

An efficient and highly regioselective C6-phosphorylation protocol for pyrrolo[2,3-d]pyrimidine (7-DAP) derivatives with various H-phosphine oxides induced by visible light at room temperature is described the first time. This has been successfully achieved combination of Na2-eosin Y as a photocatalyst LPO an oxidant under transition metal- additive-free conditions. The broad substrate scope, good functional group tolerance, excellent regioselectivity, air tolerant conditions make this process favorable modification scaffold enrich phosphorylated 7-DAP compounds further biological evaluation.

Language: Английский

Citations

7

Advances of N-Hydroxyphthalimide Esters in Photocatalytic Alkylation Reactions DOI Open Access

Shuaiqi He,

Hao‐Cong Li,

Xiaolan Chen

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2021, Volume and Issue: 41(12), P. 4661 - 4661

Published: Jan. 1, 2021

N-Hydroxyphthalimide (NHP) esters are easily available, stable, inexpensive, and highly photoactive compounds, which derived from the corresponding carboxylic acids.In recent years, application of NHP in photocatalytic decarboxylative reactions has captured huge attention.Herein, vigorous development alkylation using alkyl as alkylating reagents is summarized based on classification photocatalysts.

Language: Английский

Citations

39

Advances in radical phosphorylation from 2016 to 2021 DOI Open Access
Jie Liu,

Han-Zhi Xiao,

Qiang Fu

et al.

Chemical Synthesis, Journal Year: 2021, Volume and Issue: unknown

Published: Jan. 1, 2021

Chemical Synthesis is an open access peer-reviewed journal publishing original research involving all areas of the chemical sciences. The aims to be premier resource seminal and insightful showcases for researchers in both academia industry, providing a platform inspiration future chemistry. intends serve as preeminent international chemistry has ambition among first choices chemists publication their discoveries.

Language: Английский

Citations

33