Ru/Al2O3 catalyzed N-oxidation of tertiary amines by using H2O2

Pitchaimani Veerakumar; Subramanian Balakumar; Murugesan Velayudham; Kuang-Lieh Lu; Seenivasan Rajagopal

doi:10.1039/C2CY20047C

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Ru/Al₂O₃ catalyzed N-oxidation of tertiary amines by using H₂O₂†

Pitchaimani Veerakumar,^a Subramanian Balakumar,^b Murugesan Velayudham,^c Kuang-Lieh Lu^c and Seenivasan Rajagopal*^a

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* Corresponding authors

^a Department of Physical Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, India
E-mail: rajagopalseenivasan@yahoo.com, spveerakumar@gmail.com
Fax: +91 452 2459105
Tel: +91 452 2458246

^b Department of Chemistry, PSN College of Engineering and Technology, Tirunelveli, India

^c Institute of Chemistry, Academia Sinica, Taipei, Taiwan

Abstract

Synthesis of several aromatic heterocyclic N-oxides using nanoruthenium (Ru(PVP)/γ-Al₂O_3, catalyst I) in the presence of 30% H₂O₂ as the oxidant is presented. Catalyst I shows good catalytic activity in N-oxidation reactions. Aqueous H₂O₂ as a cheap and clean oxidant with active catalyst I has been developed to minimize waste production and meet the requirements of green chemistry. A variety of aromatic tertiary nitrogen compounds have been efficiently oxidized to their corresponding N-oxides in excellent yields.

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Article information

DOI: https://doi.org/10.1039/C2CY20047C
Article type: Communication
Submitted: 27 Jan 2012
Accepted: 17 Apr 2012
First published: 19 Apr 2012

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Catal. Sci. Technol., 2012,2, 1140-1145

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Ru/Al₂O₃ catalyzed N-oxidation of tertiary amines by using H₂O₂

P. Veerakumar, S. Balakumar, M. Velayudham, K. Lu and S. Rajagopal, Catal. Sci. Technol., 2012, 2, 1140 DOI: 10.1039/C2CY20047C

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