Citation: Abbasi Zahra, Rezayati Sobhan, Bagheri Maryam, Hajinasiri Rahimeh. Preparation of a novel, efficient, and recyclable magnetic catalyst, γ-Fe₂O₃@HAp-Ag nanoparticles, and a solventand halogen-free protocol for the synthesis of coumarin derivatives[J]. Chinese Chemical Letters, ;2017, 28(1): 75-82. doi: 10.1016/j.cclet.2016.06.022 shu

Preparation of a novel, efficient, and recyclable magnetic catalyst, γ-Fe₂O₃@HAp-Ag nanoparticles, and a solventand halogen-free protocol for the synthesis of coumarin derivatives

a.
Young Researchers and Elite Club, Ilam Branch, Islamic Azad University, Ilam, Islamic Republic of Iran
b.
Chemistry Department, Qaemshahr Branch, Islamic Azad University, PO BOX 163, Qaemshahr, Islamic Republic of Iran

Corresponding author: Rezayati Sobhan, sobhan.rezayati@yahoo.com
Received Date: 5 May 2016
Revised Date: 3 June 2016
Accepted Date: 12 June 2016
Available Online: 21 January 2016

Figures(9)

In this protocol, Ag supported on the hydroxyapatite-core-shell magnetic γ-Fe₂O₃ nanoparticles (γ-Fe₂O₃@HAp-Ag NPs) as a novel, efficient, and magnetically recyclable catalyst is synthesized, and characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and vibrating sample magnetometry (VSM). The use of the catalyst is described in the synthesis of coumarin derivatives by the Pechmann condensation of various phenols with β-ketoesters under solvent-and halogen-free conditions at 80℃. This novel and inexpensive method offers advantages, such as recyclability simple experimental protocol, short reaction time, minimal work-up procedure, and excellent yields of products, together with desirable, eco-friendly, green aspects by avoiding toxic elements and solvents, and ease of recovery from the reaction mixture using an external magnet.
- γ-Fe₂O₃ nanocatalyst,
- Heterogeneous,
- Catalyst,
- Pechman condensation,
- Ag supported
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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation of a novel, efficient, and recyclable magnetic catalyst, γ-Fe2O3@HAp-Ag nanoparticles, and a solventand halogen-free protocol for the synthesis of coumarin derivatives

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通讯作者: 陈斌, bchen63@163.com

Preparation of a novel, efficient, and recyclable magnetic catalyst, γ-Fe₂O₃@HAp-Ag nanoparticles, and a solventand halogen-free protocol for the synthesis of coumarin derivatives