Phenylurea-equipped p-tert-butylthiacalix[4]arenes as the synthetic receptors for monocharged anions

Abstract

New p-tert-butylthiacalix[4]arenes linked with phenylurea fragments can serve as synthetic receptors for fluoride, acetate or dihydrogen phosphate anions depending on the conformation of the macrocycle (cone, 1,3-alternate) and the number of substituents. © 2013 Mendeleev Communications. All rights reserved.