Immobilized TiO2 nanoparticles on carbon nanotubes: an efficient heterogeneous catalyst for the synthesis of chromeno[b]pyridine derivatives under ultrasonic irradiation

被引：52
作者：
Abdolmohammadi, Shahrzad [1 ]
Mirza, Behrooz [2 ]
Vessally, Esmail [3 ]
机构：
[1] Islamic Azad Univ, East Tehran Branch, Dept Chem, POB 18735-138, Tehran, Iran
[2] Islamic Azad Univ, Karaj Branch, Dept Chem, Tehran, Iran
[3] Payame Noor Univ, Dept Chem, Tehran, Iran
来源：
RSC ADVANCES | 2019年 / 9卷 / 71期
关键词：
TIO2-CNTS NANOCOMPOSITE; HIGHLY EFFICIENT; MILD SYNTHESIS; CHEMISTRY; MICROWAVE;
D O I：
10.1039/c9ra09031b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new protocol for the synthesis of chromeno[b]pyridine derivatives is described via a three-component reaction of 4-aminocoumarin, aromatic aldehydes and malononitrile catalyzed by TiO2 nanoparticles immobilized on carbon nanotubes (TiO2-CNTs) as an efficient heterogeneous catalyst under ultrasonic irradiation in water. The sustainable and economic benefits of the protocol are the high yields of products, short reaction time, simple work-up procedure, and use of a non-toxic and reusable catalyst.
引用
收藏
页码：41868 / 41876
页数：9
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