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Synlett 1996; 1996(6): 565-567
DOI: 10.1055/s-1996-5475
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Synthesis of a Chiral Alkyl-Bridged Bis(catecholamide) Ligand for the Self-Assembly of Enantiomerically Pure Helicates

Markus Albrecht*
  • *Institut für Organische Chemie, Universität Karlsruhe, D-76131 Karlsruhe, Germany, Fax Int. Code + (721) 698529
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Publikationsdatum:
31. Dezember 2000 (online)

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The chiral bis(catechol) ligand 4 can be synthesized starting with 1,2-bis(2,3-dimethoxyphenyl)ethane (1) and S-1-phenylethyl isocyanate (2). An enantiomerically pure binuclear triple-stranded helicate 5 is formed in a spontaneous self-assembly process from ligand 4 and titanium(IV) ions in the presence of potassium carbonate.

self-assembly - helicate - stereoselectivity - titanium compound