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Issue 95, 2014
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β-Cyclodextrin–TiO2: Green Nest for reduction of nitroaromatic compounds

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Abstract

In this paper, highly efficient photocatalytic reduction of nitroaromatic compounds was investigated using β-cyclodextrin (β-CD) and commercial nano-TiO2 as a host–guest system in water under sunlight irradiation. The nitroaromatic compounds solubilized in water through encapsulation in β-CD formed an inclusion complex which was attached to TiO2 under sunlight irradiation. This ‘guest–host system’ that we call ‘Green Nest’ showed high efficiency for the reduction of nitro compounds to the corresponding amines, and more interestingly, one pot reductive N-formylation and N-acylation from nitroaromatic compounds can be carried out in the presence of triethyl orthoformate, acetic and benzoic anhydride. The β-CD–TiO2 was characterized by transmission electron microscopy, UV-visible spectra, thermogravimetric analysis, Brunauer–Emmett–Teller measurements, UV-visible diffuse reflectance spectroscopy, and Raman spectroscopy.

Graphical abstract: β-Cyclodextrin–TiO2: Green Nest for reduction of nitroaromatic compounds

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Article information


Submitted
03 Aug 2014
Accepted
02 Oct 2014
First published
02 Oct 2014

RSC Adv., 2014,4, 52762-52769
Article type
Paper
Author version available

β-Cyclodextrin–TiO2: Green Nest for reduction of nitroaromatic compounds

M. A. Kakroudi, F. Kazemi and B. Kaboudin, RSC Adv., 2014, 4, 52762
DOI: 10.1039/C4RA08059A

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