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Beilstein-Institut, Beilstein Journal of Organic Chemistry, (12), p. 2181-2188, 2016

DOI: 10.3762/bjoc.12.208

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Diels–Alder reactions in confined spaces: the influence of catalyst structure and the nature of active sites for the retro-Diels–Alder reaction

Journal article published in 2016 by Ángel Cantín, M. Victoria Gomez, Antonio de la Hoz ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Diels–Alder cycloaddition between cyclopentadiene and p-benzoquinone has been studied in the confined space of a pure silica zeolite Beta and the impact on reaction rate due to the concentration effect within the pore and diffusion limitations are discussed. Introduction of Lewis or Brønsted acid sites on the walls of the zeolite strongly increases the reaction rate. However, contrary to what occurs with mesoporous molecular sieves (MCM-41), Beta zeolite does not catalyse the retro-Diels–Alder reaction, resulting in a highly selective catalyst for the cycloaddition reaction.