Jump to main content
Jump to site search

Issue 7, 2018
Previous Article Next Article

Vanadium-based polyoxometalate complex as a new and efficient catalyst for phenol hydroxylation under mild conditions

Author affiliations

Abstract

An eco-compatible catalytic protocol for H2O2 induced hydroxylation of phenol (PH) to catechol (CT) and hydroquinone (HQ) in aqueous medium, using a polyoxovanadate (POV) complex as the catalyst, is described. The synthesis of the POV catalyst, with a new type of three dimensional framework, Na6(H2O)22(V10O28)·2H2O (1) was accomplished by establishing a non-hydrothermal one-step methodology under mild conditions. The catalyst was characterized by elemental analysis, spectral studies, single crystal X-ray diffraction studies, and Brunauer–Emmett–Teller (BET) and TGA analysis. Under optimum conditions of reaction, conducted at ambient temperature, the phenol conversion reached up to 55.4% providing a TON of 138. The catalyst could be recovered easily and recycled at least up to three cycles without significant change in activity. The developed methodology is operationally simple and free from halogenated solvents or any other hazardous additives.

Graphical abstract: Vanadium-based polyoxometalate complex as a new and efficient catalyst for phenol hydroxylation under mild conditions

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Nov 2017, accepted on 12 Feb 2018 and first published on 13 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04433J
Citation: New J. Chem., 2018,42, 5142-5152
  •   Request permissions

    Vanadium-based polyoxometalate complex as a new and efficient catalyst for phenol hydroxylation under mild conditions

    M. Sharma, G. Saikia, K. Ahmed, S. R. Gogoi, V. G. Puranik and N. S. Islam, New J. Chem., 2018, 42, 5142
    DOI: 10.1039/C7NJ04433J

Search articles by author

Spotlight

Advertisements