现代化工

现代化工 ›› 2023, Vol. 43 ›› Issue (9) : 104-108. DOI: 10.16606/j.cnki.issn0253-4320.2023.09.022

科研与开发

双核酰胺官能化NHC—钯(Ⅱ)配合物的合成及催化Suzuki-Miyaura交叉偶联反应研究

韩悦, 罗志雄, 阚启明, 张嘉敏, 丁茯

作者信息 +

Synthetic of binuclear amide-functionalized NHC-palladium(Ⅱ) complex and its uses in catalytic Suzuki-Miyaura cross-coupling reaction

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文章历史 +

Received		Published
2022-11-17		2023-09-20
Issue Date	Revised Date
2023-09-11	2022-11-17

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摘要

以苯并咪唑、对甲基苯胺和氯乙酰氯为原料合成二（1-苯并咪唑基）甲烷和2-氯-N-（p-甲苯基）乙酰胺，并采用溶剂热法制备了一种新型酰胺官能化氮杂环卡宾钯配合物[（amide-NHC） Pd₂Cl₄]。通过PXRD、TGA、FT-IR和SCD对其进行表征。结果表明，目标配合物属于单斜晶系、P2₁/c空间群。将[（amide-NHC） Pd₂Cl₄]配合物应用于Suzuki-Miyaura偶联反应，当催化剂摩尔分数为2%时，催化产率高达98.74%。

Abstract

Using benzimidazole, p-methylaniline and chloroacetyl chloride as starting materials, Bis(1-benzimidazolyl)methane and 2-chloro-N-(p-tolyl)acetamide are obtained, and synthesized into a novel amide-functionalized nitrogen-heterocyclic-carbene (NHC) palladium complex[(amide-NHC)Pd₂Cl₄] by solvothermal method.It is characterized by means of PXRD, TGA, FT-IR and SCD.The results show that the complex belongs to a monoclinic crystal system, P2₁/c space group.The catalytic yield reaches as high as 98.74% when[(amide-NHC)Pd₂Cl₄] complex is applied for the Suzuki-Miyaura coupling reaction, with a dosage of only 2%.