Basic ionic liquid grafted on magnetic nanoparticles: An efficient and highly active recyclable catalyst for the synthesis ofβ-nitroalcohols and 4H-benzo[b]pyrans

被引：14

作者：

Gupta, Padmini ^{[1
]}

Rani, Swati ^{[1
]}

Sah, Digvijay ^{[1
]}

Surabhi, Bholey ^{[1
]}

Shabir, Javaid ^{[1
]}

Singh, Bholey ^{[2
]}

Pani, Balaram ^{[2
]}

Mozumdar, Subho ^{[1
]}

机构：

[1] Univ Delhi, Dept Chem, Delhi 110007, India

[2] Bhaskaracharya Coll Appl Sci, Delhi 110075, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2023年 / 1274卷

关键词：

Magnetic nanoparticles; Heterogeneous catalyst; Supported ionic liquid; DABCO; HENRY REACTION; ONE-POT; MULTICOMPONENT SYNTHESIS; HETEROGENEOUS CATALYST; FE3O4-AT-SIO2; NANOPARTICLES; 3-COMPONENT SYNTHESIS; DABCO; GREEN; ACID; DERIVATIVES;

D O I：

10.1016/j.molstruc.2022.134351

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, we have synthesized Fe3O4 @SiO2 (FS) immobilized 1,4-diazabicyclo[2.2.2] octane (DABCO) based-basic ionic liquid functionalized magnetic nanoparticles. The synthesized nanocomposite was char-acterized by various physicochemical and morphological techniques such as -FTIR, Powder-XRD, VSM, BET, CHN, TEM and SEM-EDX. Its application was checked as an active and highly efficient green catalyst by utilizing it in the synthesis of various 4H-benzo[b]pyran and beta-nitroalcohol derivatives. The prepared heterogeneous catalyst was found to be thermally stable and highly cost-effective for the base-promoted organic transformation reactions producing excellent yields in short reaction times. In addition to this, the prepared magnetic nanocomposite could be readily recovered by applying a magnetic field and can be recycled up to eight catalytic cycles without any noteworthy loss in its performance.(c) 2022 Elsevier B.V. All rights reserved.

引用

页数：11

共 47 条

[21] Magnetic core-shell titanium dioxide nanoparticles as an efficient catalyst for domino Knoevenagel-Michael-cyclocondensation reaction of malononitrile, various aldehydes and dimedone [J].