Selective hydroxyl replacement in calixarenes: Amino-, azo-, and xanthenocalixarene derivatives

Article abstract of DOI:10.1021/ja00143a005

The synthesis of monoamino-, azo-, and xanthenocalixarenes and dehydroxylated calixarenes via condensation, reduction, or rearrangement of monospirodienone calixarene derivatives is described. Mild oxidation of p-tert-butylcalix[5]arene and p-tert-butylca