Reaction Kinetics and Catalysis Letters

, Volume 32, Issue 2, pp 377–385 | Cite as

Ba(OH)2 as catalyst in organic reactions. VIII. Nature of the adsorbed species in Claisen-Schmidt reaction

  • A. Alcantara
  • J. M. Marinas
  • J. V. Sinisterra
Article

Abstract

The nature of the adsorbed species in the synthesis ofo-hydroxychalcones by Claisen-Schmidt reaction catalyzed by C-200 is analyzed by IR. The presence of the adsorbed carbanion fromo-hydroxyacetophenone in the surface of the catalyst is proved. The aldehyde molecule is adsorbed too. The mechanism of the surface reaction is discussed.

Keywords

Physical Chemistry Catalysis Aldehyde Surface Reaction Organic Reaction 

Abstract

Природу адсорбированных частиц в синтезе орто-гидроксихалконов с помощью реакции Кляйзена-Шмидта, катализированной C-200, анализировали ИК-спектроскопией. Доказано присутствие адсорбированного карбаниона из орто-гидроксиацетофенона на поверхности катализатора. Адсорбируются также молекулы альдегида. Обсуждается механизм реакции на поверхности.

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Copyright information

© Akadémiai Kiadó 1986

Authors and Affiliations

  • A. Alcantara
    • 1
  • J. M. Marinas
    • 1
  • J. V. Sinisterra
    • 1
  1. 1.Organic Chemistry Department, Faculty of ScienceUniversity of CórdobaSpain

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