Chiral Heterocyclic Ligands. X. Synthesis and Metal Complexes of Hindered and Chiral 2,2′-Bipyrimidines

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Contents Vol 57(9)

doi:10.1071/CH04061

Chiral Heterocyclic Ligands. X. Synthesis and Metal Complexes of Hindered and Chiral 2,2′-Bipyrimidines

Alison J. Downard ^A, Ian G. Phillips ^A, Peter J. Steel ^A ^B

^A Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
^B Author to whom correspondence should be addressed (e-mail: peter.steel@canterbury.ac.nz).





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Australian Journal of Chemistry 57(9) 865–868 http://dx.doi.org/10.1071/CH04061
Submitted: 8 March 2004 Accepted: 24 May 2004 Published online: 1 September 2004

Abstract

The first examples of 2,2′-bipyrimidine ligands incorporating bulky or chiral substituents have been prepared by nickel(0)-mediated homo-coupling reactions of chloropyrimidines. The 4,4′-di-(tert-butyl) derivative 2 and the chiral derivative 5, with 4,5-fused bornane groups, have been shown to form mononuclear metal complexes in which they coordinate through the less hindered nitrogen donors.