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Efficient, Solvent Free and Selective Oxidation of Styrene to Benzaldehyde Over Niobium Modified Phosphomolybdic Acid Catalyst

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Abstract

Niobium substituted phosphomolybdic acid with various Nb/P mole ratio of catalysts were successfully synthesised by hydrothermal method. These materials were characterized by X-ray diffraction, FT-IR spectroscopy, Raman spectroscopy, temperature programmed desorption of ammonia and BET surface area measurements to be investigate the structural and acidity properties of catalyst. The activities of the materials were evaluated for the solvent free oxidation of styrene to benzaldehyde and the best catalytic activity was achieved for the catalyst with Nb/P mole ratio is 2.0. This catalytic system provides one of the most straight forward syntheses of carbonyl compound from styrene. The synthesized material can be recovered and reused for same reaction.

Graphic Abstract

Reaction Oxidation of styrene to benzaldehyde over Nb containing phosphomolybdic acid catalyst

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Acknowledgements

Authors thank to CSIR-Indian Institute of Chemical Technology, Hyderabad, India

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Authors and Affiliations

  1. Chemistry Division, Department of Basic Science & Humanities (BS&H), GMR Institute of Technology, GMR Nagar, Rajam-Affiliated to JNTUK, Srikakulam, Andhra Pradesh, India

    Balaga Viswanadham

  2. Catalysis Division, Indian Institute of Chemical Technology, Hyderabad, Telangana, India

    Komandur V. R. Chary

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  1. Balaga Viswanadham
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  2. Komandur V. R. Chary
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Correspondence to Balaga Viswanadham.

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Viswanadham, B., Chary, K.V.R. Efficient, Solvent Free and Selective Oxidation of Styrene to Benzaldehyde Over Niobium Modified Phosphomolybdic Acid Catalyst. Catal Lett 152, 2491–2497 (2022). https://doi.org/10.1007/s10562-021-03828-w

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