Preparation and characterization of BF3 supported on coconut shell as a novel and effective nano-catalyst for one-pot synthesis of pyrano[2,3-d]pyrimidines

被引：13

作者：

Molaei, Hamidreza ^{[1
]}

Sadeghi, Bahareh ^{[1
]}

机构：

[1] Islamic Azad Univ, Yazd Branch, Dept Chem, POB 89195-155, Yazd, Iran

来源：

JOURNAL OF NANOSTRUCTURE IN CHEMISTRY | 2018年 / 8卷 / 02期

关键词：

BF3 supported on coconut; Pyrano[2,3-d]pyrimidines; Barbituric acid; Ethyl cyanoacetate; Nano-catalyst; SOLVENT-FREE CONDITIONS; AQUEOUS-MEDIA; RECYCLABLE CATALYST; EFFICIENT CATALYST; REUSABLE CATALYST; GRAPHENE OXIDE; DERIVATIVES; NANOPARTICLES; IRRADIATION; IMIDAZOLES;

D O I：

10.1007/s40097-018-0268-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, boron trifluoride supported on coconut shell nano-particles (nano-BF2O-coc) was prepared from nano-crystalline coconut shell through mechanical method using ultrasonication. The resultant was utilized to obtain nano-crystalline BF3 supported on coconut shell nano-particles (nano-BF2O-coc). The novel nanostructure has been characterized using Fourier transform infrared spectroscopy, transmission electron microscopy, field-emission scanning electron microscopy, and energy-dispersive X-ray spectroscopy (EDX) techniques. The catalytic activity of the solid acid catalyst has been successfully examined in a one-pot, three-component condensation reaction of barbituric acid, ethyl cyanoacetate or malononitrile, and aldehydes in refluxing ethanol to furnish pyrano[2,3-d]pyrimidine derivatives. [GRAPHICS] .

引用

页码：197 / 206

页数：10

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