Synthesis of New Chiral Ligands by Capping of Calix[4]arene Derivatives

Abstract
Calix[4]arene derivatives are used as a scaffold for the attachment of chiral substituents. Calix[4]arenes having either lower or upper rim capped with chiral binaphtholic species 5 and 6, as well as new biscalix[4]arenodiaza-18-crown-6 (8), have been synthesized.

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