EFFECT OF THE CONDITIONS IN HETEROGENEOUS CATALYTIC HYDROGENATION ON ASYMMETRIC INDUCTION.

A. Tungler, M. Acs, T. Mathe, E. Fogassy, Z. Bende, J. Petro. J.

Research output: Contribution to journalArticle

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Abstract

In the hydrogenation of optically active Schiff bases the effect of reaction-parameters, i. e. catalyst dispersion, mass and solvent polarity, on the asymmetric induction was studied. Increasing the catalyst's dispersion and amount decreases the asymmetric induction. The influence of solvent polarity on the ratio of diastereoisomers produced depends on whether the more or the less polar substituents of the molecules are attached to the prochiral carbon atom. On the basis of the authors' observations and of the structure of Dreiding models, the following reaction course is proposed: the most stable adsorbed conformers reacting with the H atoms adsorbed on neighboring Pd atoms give the diastereoisomers produced in excess.

Original languageEnglish
Pages (from-to)127-140
Number of pages14
JournalApplied Catalysis
Volume17
Issue number1
DOIs
Publication statusPublished - Jan 1 1985

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Hydrogenation
Atoms
Catalysts
Molecules
Carbon

ASJC Scopus subject areas

  • Engineering(all)

Cite this

EFFECT OF THE CONDITIONS IN HETEROGENEOUS CATALYTIC HYDROGENATION ON ASYMMETRIC INDUCTION. / Tungler, A.; Acs, M.; Mathe, T.; Fogassy, E.; Bende, Z.; Petro. J., J.

In: Applied Catalysis, Vol. 17, No. 1, 01.01.1985, p. 127-140.

Research output: Contribution to journalArticle

Tungler, A. ; Acs, M. ; Mathe, T. ; Fogassy, E. ; Bende, Z. ; Petro. J., J. / EFFECT OF THE CONDITIONS IN HETEROGENEOUS CATALYTIC HYDROGENATION ON ASYMMETRIC INDUCTION. In: Applied Catalysis. 1985 ; Vol. 17, No. 1. pp. 127-140.
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