Chiral bis(oxazoline) complexes. Synthesis, structure and applications in catalytic phospho-transfer

Mingliang Jiang, Scott J Dalgarno, Colin A Kilner, Malcolm A Halcrow, Terence P Kee

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

A number of complexes have been prepared and characterised which contain [3aS-[2(3 ` aR*,8 ` aS*),3a,8a]]-methylene-bis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole (BOX-H) and [3aS-[2(3 ` aR*,8 ` aS*),3a,8a]]-2,2 `-(2,6-pyridinediyl)bis[3a,8a-dihydro-8H-indeno[1,2-d]oxazole (Py-BOX) ligand frameworks. Single crystal X-ray analyses are reported on five compounds including one of the ligands themselves. The reported complexes have been examined as catalyst precursors in the catalytic phospho-transfer reaction between diorgano-H-phosphonate and benzaldehyde. In this context, we find the complexes to favour competitive hydrolysis of starting diorgano-H-phosphonates to monoorgano-H-phosphonic acids rather than nucleophilic addition to a carbonyl substrate. (C) 2001 Elsevier Science Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)2151-2162
Number of pages12
JournalPolyhedron
Volume20
Issue number17
DOIs
Publication statusPublished - 15 Jul 2001

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