X-ray, molecular diffusion, and NOESY NMR studies of chiral, tetranuclear Cu(I) catalysts based on monodentate thiol analogues of TADDOL

Arkadius Pichota, Paul S. Pregosin, Massimiliano Valentini, Michael Wörle, Dieter Seebach

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

The new, stable, chiral thiol-TADDOL Cu1 catalysts 1 (X = OH, OMe, NMe2) reveal an unexpected monodentate complexation mode, both in solution and in the solid state. For the first time, the aggregation state of organocopper complexes has been determined by NMR diffusion measurements NOESY NMR data on model isocyanide Cu complexes reveal a different conformation of the TADDOL moiety as a function of the second potential donor group. TADDOL = α,α,α',α'-tetraaryl-2,2-dimethyl-1,3-dioxolane-4,5- dimethanol.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
JournalAngewandte Chemie - International Edition
Volume39
Issue number1
DOIs
Publication statusPublished - Jan 3 2000

Keywords

  • Aggregation
  • Copper
  • NMR spectroscopy
  • S ligands

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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