Symmetric and asymmetric samarium alkoxide derivatives of bridging sulfur biphenolate and binaphtholate ligands; synthetic, structural, and catalytic studies

P L Arnold, L S Natrajan, J J Hall, S J Bird, C Wilson, Polly Arnold

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The new thio-binaphthol 2,2'thiobis(3,6-di-tert-butylnaphth-2-ol), and a phenolic analogue 2,2'thiobis(6-tert-butyl-4-methyl phen-2-ol) react with the Sm(III) aryloxide [Sm(OC6H3Bu2'-2,6)(3)] to give the first f-element complexes supported by S-bridged biphenolate or binaphtholate ancillary ligands, [Sm{1,1'-S(2-OC10H4Bu2'-3,6)(2)}(OC6H3Bu2'-2,6)](2) and [Sm{1,1'-S(2-OC6H2But-3-Me-5)(2)}(OC6H3Bu2t-2,6)](2). Symmetric and asymmetric derivatives of both ligands have been prepared by careful tuning of the preparative procedure, the asymmetric naphtholate derivative, and the ligand from which it derives have both been structurally characterised. The asymmetric derivatives are found to be highly selective catalysts for diol desymmetrisation. (C) 2002 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)205-215
Number of pages11
JournalJournal of organometallic chemistry
Volume647
Issue number1-2
Publication statusPublished - 15 Mar 2002

Keywords / Materials (for Non-textual outputs)

  • sulfur biphenolate
  • Sm(III) lewis acid
  • binaphtholate ancillary ligands
  • aryloxide
  • asymmetric monoacylation
  • desymmetrisation
  • X-RAY STRUCTURES
  • THF = TETRAHYDROFURAN
  • CRYSTAL-STRUCTURE
  • SELECTIVE MONOACYLATION
  • AEROBIC OXIDATION
  • ARYLOXIDE COMPLEX
  • CYCLOPENTADIENYL LIGANDS
  • OLEFIN POLYMERIZATION
  • ANCILLARY LIGAND
  • PRIMARY ALCOHOLS

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