Suzuki–Miyaura cross-coupling of unprotected ortho-bromoanilines with benzyl, alkyl, aryl, alkenyl and heteroaromatic boronic esters DOI Creative Commons

Alexandra E. Lubaev,

Christopher C. Marvin,

Amanda W. Dombrowski

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(40), P. 29184 - 29188

Published: Jan. 1, 2024

An efficient Suzuki–Miyuara reaction was developed on unprotected ortho -bromoanilines providing good to excellent yields a wide variety of substrates. The robustness the showcased gram scale.

Language: Английский

Transition-Metal-Free C–N Cross-Coupling Enabled by a Multifunctional Reagent DOI
Patrick S. Fier, Suhong Kim

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(10), P. 6476 - 6480

Published: March 4, 2024

We report the design and development of a transition-metal-free cross-coupling reaction phenols primary amines using simple readily available multifunctional reagent. The reactions work by induced proximity electronic activation both nucleophile electrophile for net dehydrative C-N coupling reactions. Notably, do not involve use transition metal bond formation, preactivation phenol electrophile, or exclusion air moisture. mild conditions tolerate broad range functional groups allow this to be applied late-stage functionalization complex substrates with wide scope partners.

Language: Английский

Citations

15
Covalent Organic Frameworks as Heterogeneous Photocatalysts for Cross-Coupling Reactions DOI

Avanti Chakraborty,

Monojit Roy,

Akhtar Alam

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(18), P. 9619 - 9651

Published: Jan. 1, 2024

This review focuses on advances in covalent organic framework (COF) photocatalysts for cross-coupling reactions, which provide a greener catalytic route transformations.

Language: Английский

Citations

11
Magnetically retractable tea extract stabilized palladium nanoparticles for denitrogenative cross-coupling of aryl bromides with arylhydrazines under green conditions: An alternate route for the biaryls synthesis DOI Creative Commons
Sumanth Hegde, Aatika Nizam

Catalysis Communications, Journal Year: 2024, Volume and Issue: 187, P. 106862 - 106862

Published: Feb. 1, 2024

Novel palladium based magnetic nanocatalyst was synthesized by the co-precipitation method and coated with silica tea extract as stabilizing agent. Palladation onto prepared nanocomposite done to get ION-SiO2/TE-Pd(0) catalyst. Our study is one of limited number studies reported for catalytic denitrogenative coupling arylbromide arylhydrazine. This led construction important substituted biaryls bearing various substituents 82–92% yields. The characterized using structural morphological characterization techniques. It also observed that only 2 mol% catalyst sufficient catalysis reusable upto six cycles.

Language: Английский

Citations

9
Photocatalytic Applications of Covalent Organic Frameworks: Synthesis, Characterization, and Utility DOI Creative Commons

Jared G. Doremus,

Bertha Lotsi,

Amit Sharma

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

This review highlights the recent advances in utilizing covalent organic frameworks (COFs) for photocatalytic applications.

Language: Английский

Citations

6
Asymmetric Intramolecular Amination Catalyzed with Cp*Ir-SPDO via Nitrene Transfer for Synthesis of Spiro-Quaternary Indolinone DOI
Shiqiang Wei, Zihao Li, Shuanghu Wang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(28), P. 18841 - 18847

Published: July 8, 2024

An asymmetric intramolecular spiro-amination to high steric hindering

Language: Английский

Citations

5
Cyclic natural product oligomers: diversity and (bio)synthesis of macrocycles DOI
Fu Yan, Shuai Fan, Haocheng He

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 25, 2024

This graphical abstract compares enzymatic and chemical macrocyclization of cyclic natural product oligomers, highlighting bacterial, fungal, plant enzymes, alongside methods like ring-closing metathesis, lactonization, disulfide bridges, cycloaddition.

Language: Английский

Citations

4
Latest Developments in Palladium and Nickel-Catalyzed Cross-Couplings for Aryl Chlorides: Suzuki-Miyaura and Buchwald-Hartwig Reactions DOI Creative Commons
Yoichi M. A. Yamada, Abhijit Sen

Synthesis, Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

Abstract Palladium- and nickel-catalyzed cross-couplings are powerful methods for constructing C–C C–N bonds, particularly through Suzuki–Miyaura Buchwald–Hartwig reactions. Although aryl iodides, bromides, triflates the most commonly used substrates, chlorides less frequently utilized due to their lower reactivity. However, they appealing because readily available inexpensive. This short review highlights recent developments on of chlorides, using both homogeneous heterogeneous catalysis with palladium nickel. 1 Introduction 2 Cross-Couplings 2.1 Homogeneous Palladium Catalysis 2.2 Heterogeneous 2.3 Nickel 2.4 3 Amination Reactions 3.1 3.2 3.3 3.4 4 Conclusion

Language: Английский

Citations

3
Waste for Product: Pd and Pt Nanoparticle-Modified Ni Foam as a Universal Catalyst for Hydrogen/Oxygen Evolution Reaction and Methyl Orange Degradation DOI Open Access

Julia Druciarek,

Dawid Kutyła, Adrianna Pach

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(2), P. 133 - 133

Published: Jan. 30, 2025

Declining natural resources make the recovery of metals from waste solutions a promising alternative. Moreover, processing into finished product has its economic justification and benefits. Thus, aim this research was developing Waste for Product strategy, indicating possibility with low content platinum-group catalyst synthesis. The results obtained confirmed that diluted synthetic containing trace amount valuable metal ions (Pd, Pt) can be used process Catalysts produced in form palladium platinum nanoparticles were successfully deposited on Ni foam due to galvanic displacement mechanism. Synthesized catalysts characterized using UV-Vis spectrophotometry, SEM/EDS, XRD techniques. Electro- catalytic properties tested hydrogen/oxygen evolution reactions methyl orange degradation, respectively. electrocatalytic tests indicated modification nickel surface by consisting noble as Pd Pt significantly increase activity hydrogen oxygen comparison non-treated samples. Catalytic performed degradation shorten time several hours 15 min. most favorable following order Pd1.0Pt0@Ni > Pd0Pt1.0@Ni Pd0.5Pt0.5@Ni no catalyst, best performance pure surface.

Language: Английский

Citations

0
A DFT mechanistic study on nickel-catalyzed arylation of amino alcohols with aryl electrophiles: insights into the origins of chemoselectivity DOI

Chengcheng Shan,

Zhiqiang Zhang,

Jinzong You

et al.

Catalysis Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

DFT calculations fully rationalize the mechanistic details and origins of chemoselectivity for nickel-catalyzed arylation amino alcohols with aryl electrophiles.

Language: Английский

Citations

0
Sustainable, precious-metal-free C–N cross coupling through photocatalysis DOI

Mohammad Hassam,

Samuelu Mamidipalli,

Akhila Ailaveni

et al.

New Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Photoredox catalysis has evolved as a sustainable method of constructing C–N bonds.

Language: Английский

Citations

0