Saeed Taghvaei-Ganjali, Atoussa Modjallal
Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran,
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As a result of experimental studies on the dealkylation of tetra-O-propyl-p-tert-butyl calixarene 1, we have found that by treating 1 with the stoichiometric amount of AlCl3, the tri, di and mono-O-propyl-p-tert-butyl calixarene are obtained in good yield. In these reactions tert-butyl groups at the upper rim are uchanged.