Immobilization of a Pd(ii)-containing N-heterocyclic carbene ligand on porous organic polymers: efficient and recyclable catalysts for Suzuki-Miyaura reactions

Lin Hongwei; Gao Xiyue; Yao HuanLuo QionglinXiang BailinLiu CijieOuyang YuejunZhou NonglinXiang Dexuan

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Immobilization of a Pd(ii)-containing N-heterocyclic carbene ligand on porous organic polymers: efficient and recyclable catalysts for Suzuki-Miyaura reactions

机译：Pd(2)包含的固定多孔有机氮杂卡宾配体聚合物:高效和可回收的催化剂Suzuki-Miyaura反应

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Palladium coordinated with N-heterocyclic carbene-functionalized porous organic polymers (Pd@POPs) was successfully prepared via Scholl coupling reaction and a successive immobilization method. The protocol features simple reaction conditions, easy separation, high yield and low cost. The structure and composition of Pd@POPs were characterized by N-2 sorption, TGA, FT-IR, SEM, EDX, TEM, XPS and ICP. Then the obtained heterogeneous catalysts were applied in Suzuki-Miyaura coupling reaction to evaluate their catalytic performance. The Pd@POPs displayed high catalytic activity for the Suzuki-Miyaura coupling reaction in an EtOH/H2O solvent. A 0.03 mol% Pd loading was sufficient for the reaction with a high turnover number (TON) of 3220. Moreover, the catalyst was easily recovered and reused for at least six consecutive cycles without obvious loss of its initial activity.

机译：钯与氮杂相协调carbene-functionalized多孔有机聚合物通过肖勒(Pd@POPs)成功地准备偶联反应和连续的固定方法。条件,容易分离,高产量和低成本。通过n -吸附,TGA、ir、SEM、EDX、TEM、XPS和ICP。异构催化剂应用于Suzuki-Miyaura耦合反应评价它们的催化性能。显示高的催化活性Suzuki-Miyaura偶合反应在一个EtOH / H2O溶剂。反应高转化率3220(吨)。回收和重用至少连续六次周期没有明显的最初的损失活动。

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《Catalysis science & technology》 |2021年第11期|3676-3680|共5页
作者
Lin Hongwei; Gao Xiyue; Yao HuanLuo QionglinXiang BailinLiu CijieOuyang YuejunZhou NonglinXiang Dexuan;
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作者单位

Huaihua Univ, Coll Chem & Mat Engn, Key Lab Res & Utilizat Ethnomed Plant Resources H, Hunan Engn Lab Preparat Technol Polyvinyl Alcohol, Huaihua 418000, Peoples R China;

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正文语种英语
中图分类汉语教学;
关键词
Suzuki coupling reaction; Organic polymers; ImmobilizationREACTIONCatalystscarbeneSuzuki reactionPorousCatalyst activity;

机译：铃木偶合反应,有机聚合物;Immobili;

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Immobilization of a Pd(ii)-containing N-heterocyclic carbene ligand on porous organic polymers: efficient and recyclable catalysts for Suzuki-Miyaura reactions

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