Abstract
In order to determine the nature of active sites that act in the Michael addition of ethyl malonate to chalcone in EtOH, catalyzed by activated barium hydroxide, selective poisoning experiments have been carried out. It has been found that the catalytic activity of the C-200 catalyst is related to the strong basic sites titrated by TBMPHE.
Abstract
С целью определения природы активных центров прововодились эксперименты селективного отравления активированной гидроокиси бария, катализирую-шей аддицию Михаэля в случае этилмалоната и халкона в этаноле. Было найдено, что каталитическая активность катализатора C-200 приписыва-ется сильным основным центрам, титрируемым с помошью TBMPHE.
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References
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Sinisterra, J.V., Garcia-Blanco, F., Iglesias, M. et al. Ba(OH)2 as catalyst in organic reactions: I. Nature of active sites in the michael addition. React Kinet Catal Lett 27, 263–267 (1985). https://doi.org/10.1007/BF02070454
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DOI: https://doi.org/10.1007/BF02070454