[EN] IONOMERS WITH MACROCYCLIC MOIETIES FOR ION CONDUCTIVITY AND PERMSELECTIVITY [FR] IONOMÈRES À FRACTIONS MACROCYCLIQUES DESTINÉS À LA CONDUCTIVITÉ IONIQUE ET À LA PERMSÉLECTIVITÉ
The electrophilic substitution of 25,27-dipropoxy-26,28-dinosyloxycalix[4]arene leads exclusively to the para-substitution of the alkylated phenol rings, while in the next step, the protecting nosyl group can be easily removed using a basic hydrolysis. The overall process yields dialkoxycalix[4]arenes with the substitution on the alkylated rings—the substitution pattern, which is complementary to the