Regioselective mononitration of biphenyl by use of stoichiometric quantities of nitrogen dioxide and molecular oxygen over rare earth cation-exchanged β-zeolite catalysts

Regioselective mononitration of biphenyl by use of stoichiometric quantities of nitrogen dioxide... In the presence of molecular oxygen and zeolite La-β with Si/Al2 = 260, regioselective mononitration of biphenyl with stoichiometric quantities of liquid nitrogen dioxide occurs at 20 °C to yield mononitrobiphenyl, as the main product, in yields up to 82.7 %. The 2-nitrobiphenyl:4-nitrobiphenyl isomer ratio is 0.34. The process is eco-friendly and inexpensive, and the zeolite is easily regenerated by simple work-up to give results similar to those obtained with the fresh catalyst. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Regioselective mononitration of biphenyl by use of stoichiometric quantities of nitrogen dioxide and molecular oxygen over rare earth cation-exchanged β-zeolite catalysts

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-1954-0
Publisher site
See Article on Publisher Site

Abstract

In the presence of molecular oxygen and zeolite La-β with Si/Al2 = 260, regioselective mononitration of biphenyl with stoichiometric quantities of liquid nitrogen dioxide occurs at 20 °C to yield mononitrobiphenyl, as the main product, in yields up to 82.7 %. The 2-nitrobiphenyl:4-nitrobiphenyl isomer ratio is 0.34. The process is eco-friendly and inexpensive, and the zeolite is easily regenerated by simple work-up to give results similar to those obtained with the fresh catalyst.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Mar 4, 2015

References

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