Polyphosphoric acid supported on silica-coated NiFe2O4 nanoparticles: An efficient and magnetically-recoverable catalyst for N-formylation of amines

被引：34
|
作者：
Khojastehnezhad, Amir [1 ]
Rahimizadeh, Mohammad [1 ]
Moeinpour, Farid [2 ]
Eshghi, Hossein [1 ]
Bakavoli, Mehdi [1 ]
机构：
[1] Ferdowsi Univ Mashhad, Dept Chem, Fac Sci, Mashhad, Iran
[2] Islamic Azad Univ, Dept Chem, Bandar Abbas Branch, Bandar Abbas 7915893144, Iran
来源：
COMPTES RENDUS CHIMIE | 2014年 / 17卷 / 05期
关键词：
Amines; N-formylation; Magnetic recovery; Polyphosphoric acid; Silica-coated NiFe2O4; ONE-POT SYNTHESIS; SOLVENT-FREE; DERIVATIVES; PPA-SIO2;
D O I：
10.1016/j.crci.2013.07.013
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A rapid, green and simple method for the N-formylation of various aromatic amines with formic acid using polyphosphoric acid supported on silica-coated NiFe2O4 magnetic nanoparticles (NiFe2O4@SiO2-PPA) under solvent-free conditions at room temperature has been developed. The magnetic catalyst can be easily removed by a simple magnet and reused at least three times without any loss of its high catalytic activity. In addition to its facility, this protocol enhances product purity and promises economic and also environmental profits. (C) 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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页码：459 / 464
页数：6
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