摘要:
Using a click reaction between alkynylthiacalix[4]arene and ethyl 2-azidoacetate followed by an ammonolysis with ethanolamine, leucinol and hydrazine hydrate, respectively, three novel thiacalix[4]arene derivatives 4, 5 and 6 with triazolyl and hydrogen bonding groups (NH and OH) were synthesized in high yields. They exhibited excellent extraction capability for six anionic and cationic dyes. The flexible cavity, pi-triazole rings and hydrogen bonding groups all play crucial roles in dye complexation. (C) 2013 Fa-Fu Yang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.