A versatile synthesis of oligocrown compounds with hydroxyl groups at the hinge

Abstract
Oxirane ring-opening reaction of N-(2,3-epoxy-1-propyl) azacrowns Ia-Ic and 4,5-epoxy-2-oxapentylcrowns IIa-IIe with mono- and diamines (including mono- and diazacrowns) afforded array of new di-, tri-, and tetracrown compounds with hydroxyl groups placed at the hinge.

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