Easy Access to N-(Pyridin-2-yl)benzamides through Electro-oxidative Ring Opening of 2-Arylimidazo[1,2-a]pyridines

Ghosh, Sayan; Dutta, Jhilik; Halder, Atreyee; Sarkar, Suman De

doi:10.1055/a-1956-9993

Cited by 6 publications

(1 citation statement)

References 55 publications

(16 reference statements)

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“…The Supporting Information contains images of photochemical set up, complete experimental procedures, complete characterization of the iron oxide nanoparticles, compound characterization data including copies of NMR spectra, control experiments and other synthetic and technical details. The authors have cited additional references within the Supporting Information [30–55] …”

Section: Supporting Informationmentioning

confidence: 99%

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Mandal,

Chaturvedi,

Azim

et al. 2024

Chemistry A European J

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A magnetically isolable iron oxide nanoparticles is introduced as an efficient heterogeneous photocatalyst for non‐directed C‒H arylation employing aryl diazonium salts as the aryl precursors. This first‐row transition metal‐based photocatalyst revealed versatile activities and is applicable to a wide range of substrates, demonstrating brilliant efficacy and superior recyclability. Detailed catalytic characterization describes the physical properties and redox behavior of the Fe‐catalyst. Adequate control experiments helped to establish the radical‐based mechanism for the C‒H arylation.

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Section: Supporting Informationmentioning

confidence: 99%

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Mandal,

Chaturvedi,

Azim

et al. 2024

Chemistry A European J

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Recent Advances in the Electrochemical Functionalization of Imidazoheterocycles

2024

Adv Synth Catal

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

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Photo/Electrochemical‐Mediated C(sp³)−H Bond Functionalization of (Thio)Ethers

Sun,

Zhao,

Sun

et al. 2024

Eur J Org Chem

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Molecules containing ether skeletons are widely present in drugs, natural products, functional materials, and life science. Direct C(sp3)–H bond ether functionalization is considered a powerful strategy for the construction of novel ether derivatives. Photo‐/electro‐chemical technology is a relatively green and sustainable synthesis method, which opens up a broad application prospect in the field of direct functionalization of C(sp3)–H bonds. In recent years, photo‐/electro‐mediated C(sp3)–H bond alkylation, arylation, alkynylation, esterification, mercaptoylation, sulfidation, and amination of ethers have been extensively studied. In this review, the research progress of photo‐/electro‐mediated C(sp3)–H bond functionalization of ether compounds from 2014 to 2023 is systematically reviewed, and the scope, limitations, and mechanisms for some reactions are discussed.

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Easy Access to N-(Pyridin-2-yl)benzamides through Electro-oxidative Ring Opening of 2-Arylimidazo[1,2-a]pyridines

Cited by 6 publications

References 55 publications

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Recent Advances in the Electrochemical Functionalization of Imidazoheterocycles

Photo/Electrochemical‐Mediated C(sp³)−H Bond Functionalization of (Thio)Ethers

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Easy Access to N-(Pyridin-2-yl)benzamides through Electro-oxidative Ring Opening of 2-Arylimidazo[1,2-a]pyridines

Cited by 6 publications

References 55 publications

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Earth‐Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green‐light Mediated C−H Arylation in Heterogeneous Phase

Recent Advances in the Electrochemical Functionalization of Imidazoheterocycles

Photo/Electrochemical‐Mediated C(sp3)−H Bond Functionalization of (Thio)Ethers

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Product

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Photo/Electrochemical‐Mediated C(sp³)−H Bond Functionalization of (Thio)Ethers