Nanocrystalline titanium dioxide catalyst for the synthesis of azlactones

doi:10.1016/S1872-2067(12)60741-4

Abstract

Abstract:

Titanium dioxide nanoparticles were prepared by a electrochemical reduction method using parameters such as current density, solvent polarity, distance between electrodes, and concentration of stabilizers to control the size of the nanoparticles. The nanoparticles were characterized by UV-Vis spectroscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy, and their catalytic performance was tested for the synthesis of a series of 4-aryldiene-2-phenyl-5(4)-oxazolones from the cyclodehydration and condensation of the respective aldehyde, hippuric acid and acetic anhydride. Easy availability, reusability and eco-friendliness were some prominent features of the nanocrystalline titanium dioxide catalyst.

Key words: Nanocrystalline titanium dioxide, Electrochemical reduction method, Cyclodehydration-condensation, Heterogeneous catalyst

Priyanka Anandgaonker, Ganesh Kulkarni, Suresh Gaikwad, Anjali Rajbhoj. Nanocrystalline titanium dioxide catalyst for the synthesis of azlactones[J]. Chinese Journal of Catalysis, 2014, 35(2): 196-200.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(12)60741-4

https://www.cjcatal.com/EN/Y2014/V35/I2/196

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