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Room-Temperature Alkane Reactivity in Zeolites: An H/D Exchange Study

  1. Abdelkarim Sani Souna Sido Dr.,
  2. Stéphane Walspurger Dr.,
  3. Jérémy Barbiche,
  4. Jean Sommer Prof. Dr.

Article first published online: 27 JAN 2010

DOI: 10.1002/chem.200902624

Issue

Chemistry - A European Journal

Chemistry - A European Journal

Volume 16, Issue 10, pages 3215–3221, March 8, 2010

Additional Information

How to Cite

Sido, A., Walspurger, S., Barbiche, J. and Sommer, J. (2010), Room-Temperature Alkane Reactivity in Zeolites: An H/D Exchange Study. Chem. Eur. J., 16: 3215–3221. doi: 10.1002/chem.200902624

Author Information

  1. Institut de Chimie Associé au CNRS (UMR 7177), Institut de Chimie de Strasbourg, 4, rue B. Pascal , 67000 Strasbourg (France)

Publication History

  1. Issue published online: 1 MAR 2010
  2. Article first published online: 27 JAN 2010
  3. Manuscript Revised: 20 NOV 2009
  4. Manuscript Received: 23 SEP 2009

Funded by

  • Locker Hydrocarbon Institute
  • CNRS
  • Ministère de la Recherche

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Keywords:

  • alkanes;
  • carbocations;
  • isotopic labeling;
  • reaction mechanisms;
  • solid acids

Abstract

As evidenced by H/D exchange with acidic zeolites, isoalkanes react readily at room temperature whereas linear alkanes do not. The observed regioselectivity of the exchange process demonstrates that the main factor controlling the reaction is not the accessibility to the acid sites, but the intrinsic reactivity of the alkane. The mechanism is best rationalized by classic organic chemistry involving carbocationic intermediates including the Markovnikov rule.

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