Syntheses, characterizations and properties of boronoalkylalkoxycalix[4]arenes
摘要:
Some new calixarenes bearing boronic acid moieties, boronoalkylalkoxycalix[4]arenes, were synthesized by allylation, Claisen's rearrangement, alkylation, hydroboration and hydrolysis from 25,26,27,28-tetrahydroxycalixl[4] arene and their structures were identified by elemental analysis, IR, LH NMR, C-13 NMR, B-11 NMR, MS and UV spectra. The UV data showed that tetraalkcoxycalix[4]arene tetraalkyltriboronic acid could coordinate significantly with carbohydrates. (C) 1999 Elsevier Science Ltd. All rights reserved.