Tannic Acid-Functionalized Silica Coated Fe3O4Nanoparticles as a Novel and Magnetically Separable Catalyst for Green Synthesis of Aryl Naphtho[1,3]Oxazine-2-Thiones

被引：4

作者：

Nikpassand, Mohammad ^{[1
]}

Kasmaei, Shokoufeh Azmoudeh ^{[2
]}

机构：

[1] Islamic Azad Univ, Dept Chem, Rasht Branch, Rasht, Iran

[2] Ghadr Inst, Dept Chem, Rasht, Iran

来源：

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS | 2020年 / 30卷 / 12期

关键词：

Fe3O4; SiO2; Tannic acid; Three-component reaction; Aryl naphtho[1; 3]oxazine-2-thione; Thiourea; ONE-POT SYNTHESIS; EFFICIENT; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; FE3O4;

D O I：

10.1007/s10904-020-01628-0

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Tannic acid-functionalized silica-coated Fe(3)O(4)nanoparticles (Fe3O4@SiO2@Tannic acid) were synthesized and characterized by Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FE-SEM), Fourier Transform Infrared Spectroscopy (FT-IR), Vibrating sample magnetometry (VSM), X-ray powder diffraction (XRD) and X-ray spectroscopy (EDS). Fe3O4@SiO2@Tannic acid supply an environmentally friendly procedure for the synthesis of 1,3-oxazine-2-thiones through three-component grinding reaction of various aldehydes, thiourea, and alpha-naphthol or beta-naphthol in accordance with green chemistry rules. In the other study, this novel synthesized magnetically reusable catalyst was introduced as a new avenue for the synthesis of Aryl naphtho[1,3]oxazine-2-thione using the reaction between synthetized azo-linked aldehydes, malononitrile, and phenylhydrazine orp-tolylhydrazine. These compounds were obtained in high yields and short reaction times. The catalyst could be easily recovered and reused for six cycles with almost consistent activity. The structures of the synthesized Aryl naphtho[1,3]oxazine-2-thione compounds were confirmed by(1)H NMR,C-13 NMR and FTIR spectral data and elemental analyses.

引用

页码：4917 / 4926

页数：10

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