Precisive Incorporation of Multiple Nitrogen Sources into Benzoxazoles via an Iodine-Mediated Electrochemical Four-Component Reaction DOI

Tong Li,

Kai Li, Jiajia Yu

и другие.

Organic Letters, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 11, 2024

An iodine-mediated electrochemical four-component reaction was developed to construct aromatic C-N bonds by making use of a simple nitrogen source, such as NH

Язык: Английский

Photo‐/Electrocatalytic Difunctionalization of Alkenes Enabled by C‐H Radical Functionalization DOI

Zilong Zhou,

Yin Zhang,

Peizhe Cui

и другие.

Chemistry - A European Journal, Год журнала: 2024, Номер 30(62)

Опубликована: Авг. 10, 2024

The difunctionalization of alkenes represents a powerful tool to incorporate two functional groups into the alkene bones for increasing molecular complexity and has been widely utilizations in chemical synthesis. Upon catalysis green, sustainable, mild photo-/electrochemistry technologies, much attentions have attracted development new tactics transformations important alkane feedstocks driven by C-H radical functionalization. Herein, we summarize recent advances photo-/electrocatalytic enabled We detailedly discuss substrate scope mechanisms reactions selecting impressive synthetic examples, which are divided four sections based on final terminated step, including oxidative radical-polar crossover coupling, reductive radical-radical transition-metal-catalyzed coupling.

Язык: Английский

Процитировано

8

Electrochemical Difunctionalization of Alkenes DOI Open Access

Yin Zhang,

Zilong Zhou,

Jin‐Heng Li

и другие.

The Chemical Record, Год журнала: 2025, Номер unknown

Опубликована: Фев. 3, 2025

Abstract Owing to their wide utilizations in synthesis and products prevalence numerous natural products, pharmaceuticals functional materials, the alkene difunctionalization methods for selective transformations of olefins are important have attracted much attention form synthetic chemists. Among them, electrochemical reaction is particularly promising has becoming a potent sustainable tool alkenes into vicinal difunctionalized structures organic through simultaneous incorporation two groups. Herein, we summarize recent progress reactions according types as well category radicals over past five years. By selecting remarkable examples, elaborately discussed substrate scope mechanisms olefin reaction.

Язык: Английский

Процитировано

1

Recent Progress on the Electro-Organic Synthesis for the 1,2-Difunctionalization of Alkenes DOI
Mingming Zhang, Ting Liu,

Xue-Qiu Chen

и другие.

Organic & Biomolecular Chemistry, Год журнала: 2025, Номер 23(10), С. 2323 - 2357

Опубликована: Янв. 1, 2025

In recent years, significant achievements have been made in the field of electroorganic chemistry regarding difunctionalization alkenes. Researchers developed innovative strategies utilizing unique reactivity electrochemical processes to synthesize complex molecules with high regioselectivity and stereoselectivity. This technology is widely applied total synthesis natural products pharmaceutical industry. article reviews research progress alkenes through three different radical-mediated pathways over past five years. It includes discussions on 1,2-stereoselective non-diastereoselective reactions, rearrangements, intramolecular migrations, cyclization processes. The summary emphasizes electrode designs, reaction mechanisms, integration other emerging technologies, highlighting potential this method modern organic chemistry. Additionally, it aims address current challenges propose possible solutions, providing a promising direction for electrochemically mediated reactions

Язык: Английский

Процитировано

0

Mitsunobu reaction: assembling C–N bonds in chiral traditional Chinese medicine DOI Creative Commons
Xue Zhou, Liang Xu, Zhanhui Ma

и другие.

RSC Advances, Год журнала: 2025, Номер 15(7), С. 5167 - 5189

Опубликована: Янв. 1, 2025

The Mitsunobu reaction is a key bimolecular nucleophilic substitution for synthesizing chiral products. This paper highlights its importance in biologically active compounds, focusing on forming C–N single bonds.

Язык: Английский

Процитировано

0

Unveiling the rule of medication and mechanisms of Xin'an medical masters in treating rheumatoid arthritis: a novel approach using data mining and network pharmacology DOI Creative Commons
Panpan Hao,

Feihong Lu,

Hui Tan

и другие.

Heliyon, Год журнала: 2025, Номер unknown, С. e42938 - e42938

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Visible-light-induced photocatalyst- and metal-free radical phosphinoyloximation of alkenes with tert-butyl nitrite as bifunctional reagent DOI
Huihui Yang, Miaomiao Li, Aijun Zhang

и другие.

Chinese Chemical Letters, Год журнала: 2024, Номер unknown, С. 110425 - 110425

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

3

Access to Isoxazoles via Photo-oxygenation of Furan Tethered α-Azidoketones DOI

Uma Devi Newar,

Sylvia Jaya Kumar,

Anupriya Borah

и другие.

The Journal of Organic Chemistry, Год журнала: 2024, Номер 89(17), С. 12378 - 12386

Опубликована: Авг. 22, 2024

Photocatalyst-free visible light-enabled direct oxygenation of furan-tethered α-azidoketones was studied. The reaction yielded various products depending on the substituents, with isoxazoles forming as major products. findings suggest that singlet oxygen generated during and reacted in a [4 + 2] fashion to yield endoperoxides, which rearranged multiple ways generate isoxazoles. Some synthesized were evaluated α-glucosidase inhibitors, three them 5bi, 5bj, 5bl exhibited good activity IC50 values 454.57 ± 29.34, 147.84 2.28, 272.58 42.06 μM, respectively, when compared standard drug acarbose (IC50 = 1224.33 126.72 μM).

Язык: Английский

Процитировано

1

Electrochemical dehydrogenative annulation for the synthesis of 4-oxo-oxazolines DOI
Yong Yuan,

Xincong Liu,

Feng Zhang

и другие.

Green Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A metal- and oxidizing reagent-free electrochemical dehydrogenative annulation of enamides with O -nucleophiles has been developed, leading to a series 4-oxo-oxazolines under environmentally friendly conditions.

Язык: Английский

Процитировано

1

The Road to Green Efficiency: Exploration of multicomponent reactions from transition metal catalysis to no catalyst conditions DOI
Jie Li, Jiabin Cui,

Hongying Guo

и другие.

Reaction Chemistry & Engineering, Год журнала: 2024, Номер 10(3), С. 500 - 510

Опубликована: Дек. 20, 2024

Multicomponent reactions (MCRs) have become excellent tools for synthesizing complex and high-value molecules. This minireview highlights recent progresses in MCRs classified by the type of catalysts to offer a better deeper understanding.

Язык: Английский

Процитировано

1

K<sub>3</sub>PO<sub>4</sub>–Mediated Synthesis of Chromeno–[3,4‐<i>c</i>]isoxazole From 3–Nitro–2<i>H</i>–chromene and <i>α</i>–Chloro Aldehyde via Michael addition/C–Cl bond cleavage/deformylation as Key Fragmentation Sequences DOI

Aniruddh Pratap,

Pushpendra Mani Shukla,

Santanab Giri

и другие.

Advanced Synthesis & Catalysis, Год журнала: 2024, Номер 366(19), С. 4122 - 4131

Опубликована: Июль 12, 2024

Abstract Here we report a transition metal– and oxidant–free annulation cascade method for the synthesis of chromeno–isoxazoles. The reaction involves easily accessible starting materials, 3‐nitro‐2 H ‐chromene α ‐chloro aldehyde, yielding structurally intriguing framework, chromeno[3,4‐ c ]isoxazoles employed by tripotassium phosphate as base. isoxazole ring construction over 2 –chromene unit is believed to occur via series multiple sequences. Here, enolate generation/Michael addition/C−Cl bond cleavage/oxy–anionic addition reactive tethered‐aldehyde/deformylation retro–C−C N−O cleavages are most possible sequences which furnish desired end–product in good chemical yields. one‐pot at mild conditions, supported experimental results few control experiments including DFT studies. This process exhibits broad substrates scope illustrating functional group compatibility towards both nitrochromenes aldehydes, thus prove be general efficient protocol chromeno[3,4– ]isoxazoles. Overall, use nitrochromene limiting reagent, noteworthy tolerance, scalability great applications like chiral pool strategy enantioenriched chromeno‐isoxazole additional features.

Язык: Английский

Процитировано

0