Interaction of amino bases with tartrate-modified Ni catalysts

L. Fu, Harold H Kung, W. M H Sachtler

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

After poisoning with pyridine, tartaric acid-modified Ni catalysts showed an unexpected behavior as regards the dependence of enantioselectivity on the reaction temperature. While in the absence of a poison the enantioselectivity decreased with increasing reaction temperature, it remained constant for pyridine-poisoned Ni catalysts. This phenomenon is tentatively explained by assuming that ligand water is replaced by pyridine ligands in the Ni-tartrate complexes on the nickel surface. As pyridine is strongly held by Ni2+ ions, a higher ligand rigidity is attained which keeps the selectivity of the catalyst constant.

Original languageEnglish
Pages (from-to)187-194
Number of pages8
JournalJournal of Molecular Catalysis
Volume42
Issue number2
DOIs
Publication statusPublished - 1987

ASJC Scopus subject areas

  • Engineering(all)

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