Harnessing the Power of Imidazolium Ionic Salts for Enhanced Suzuki–Miyaura Coupling Reactions: A Solid-State Approach

IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2025-10-14 DOI:10.1002/aoc.70385

Dipti D. Jadhav, Kiran S. Bagade, Arjun S. Kumbhar

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Abstract

Recent advancements in modern catalysis have sparked significant interest, particularly with the integration of ionic salts. We successfully synthesized a multicationic bromide ionic salt featuring a mesitylene backbone. This study investigates a novel catalytic system comprising Pd(OAc)₂ in combination with these ionic salts in a molar ratio of 2:20, for solid-state Suzuki–Miyaura coupling reactions. The catalytic system underwent comprehensive characterization utilizing various analytical techniques, including X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). This methodology proves to be an efficient and operationally convenient approach for synthesizing a diverse array of biaryls under mild conditions, achieving excellent yields and turnover numbers (TONs) ranging from 462.35 to 547.05, with turnover frequencies (TOFs) between 21.01 and 51.79 min⁻¹. Notably, the catalytic system exhibited at least five times recyclability, maintaining good catalytic efficiency.

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利用咪唑离子盐的力量增强Suzuki-Miyaura偶联反应：一种固态方法

现代催化的最新进展引起了人们的极大兴趣，特别是离子盐的整合。我们成功地合成了一种以三甲基为骨架的多阳离子溴离子盐。本研究研究了一种由Pd(OAc)2与这些离子盐以2:20的摩尔比组成的新型催化体系，用于固态Suzuki-Miyaura偶联反应。利用各种分析技术，包括x射线衍射（XRD）、透射电子显微镜（TEM）和x射线光电子能谱（XPS），对催化体系进行了全面的表征。该方法在温和的条件下合成了多种双芳基化合物，获得了良好的收率和周转率（吨），周转率(t)在462.35 ~ 547.05之间，周转率(t)在21.01 ~ 51.79 min−1之间。值得注意的是，催化体系表现出至少5倍的可回收性，保持了良好的催化效率。

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.