Chiral Ni(II) Schiff base complex-catalysed enantioselective epoxidation of prochiral non-functionalised alkenes

Kureshy, R. I. ; Khan, N. H. ; Abdi, S. H. R. ; Patel, S. T. ; Iyer, P. ; Suresh, E. ; Dastidar, P. (2000) Chiral Ni(II) Schiff base complex-catalysed enantioselective epoxidation of prochiral non-functionalised alkenes Journal of Molecular Catalysis A: Chemical, 160 (2). pp. 217-227. ISSN 1381-1169

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Official URL: https://www.sciencedirect.com/science/article/pii/...

Related URL: http://dx.doi.org/10.1016/S1381-1169(00)00213-2

Abstract

The synthesis, characterisation and single crystal X-ray structures of square planar Ni(II) chiral Schiff base complexes with N2O2-type ligands have been described. These catalysts were used for enantioselective epoxidation of non-functionalised alkenes viz. 1-hexene, 1-octene, styrene, 4-chloro-, 4-nitrostyrene and 1,2-dihydronaphthalene using NaOCl as oxidant, giving excellent conversions with long chain alkenes while ee's were moderate to good. A mechanism for the Ni(II)-catalysed epoxidation with NaOCl is proposed.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Alkenes; Asymmetric Induction; Epoxidation; Imines; Non-Functionalised
ID Code:112833
Deposited On:23 Apr 2018 06:36
Last Modified:23 Apr 2018 06:36

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