One-step synthesis of carbon-supported copper nanoparticles from biomass for N-arylation of pyrazole

被引：10

作者：

Li, Wenjing ^{[1
,2
]}

Gao, Yongjun ^{[3
]}

Tang, Pei ^{[2
]}

Xu, Yao ^{[2
]}

Ma, Ding ^{[2
]}

机构：

[1] State Grid Shandong Elect Power Res Inst, Mat Lab State Grid Corp China Shandong, Jinan 250002, Shandong, Peoples R China

[2] Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China

[3] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Hebei, Peoples R China

来源：

JOURNAL OF ENERGY CHEMISTRY | 2018年 / 27卷 / 03期

关键词：

Corn stalk; Carbon-supported copper; N-arylation; Ligand-free; CROSS-COUPLING REACTIONS; NITROGEN-CONTAINING HETEROCYCLES; PALLADIUM-CATALYZED AMINATION; LIGAND-FREE; HIGHLY EFFICIENT; ETHYLENE-GLYCOL; CELLULOSE; CONVERSION; WATER; ARYL;

D O I：

10.1016/j.jechem.2017.06.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Carbon-supported copper catalyst was prepared for the first time in one-step with copper nitrate and corn stalk through calcination under different temperatures. Uniformly dispersed nanoparticles were obtained and were identified to be Cu(0) and Cu(I) in XRD patterns. Excellent catalytic activity and selectivity were achieved in the N-arylation of pyrazole under ligand and protection gas free conditions. About 90.4% of product yield was achieved with only 0.5 mol% of copper catalyst (Cu-C-300), which was considerably more efficient than previous reports. XPS results suggested that the N-arylation of pyrazole activity was closely related to the surface Cu(I) species. (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.

引用

页码：859 / 865

页数：7

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