Synthesis and Conformational Characteristics of Benzyl-Substituted p-tert-Butylcalixarenes |
| |
Authors: | Alekseeva E A Mazepa A V Gren' A I |
| |
Institution: | (1) Bogatskii Physicochemical Institute, National Academy of Sciences of Ukraine, Odessa, Ukraine |
| |
Abstract: | (m-Methylbenzyloxy)-, bis(p-methylbenzyloxy)-, and bis(m-methylbenzyloxy)-p-tert-butylcalix4]arenes were prepared by reactions of p-tert-butylcalix4]arene with p- and m-methylbenzyl bromides in the presence of alkali metal carbonates. Silylation of these derivatives gave (m-methylbenzyloxy)bis(trimethylsilyloxy)-, bis(m-methylbenzyloxy)bis(trimethylsilyloxy)-, and bis(p-methylbenzyloxy)bis(trimethylsilyloxy)-p-tert-butylcalix4]arenes. With phase-transfer catalysis, bis(p-methylbenzyloxy)bis(2-propenyloxy)- and bis(m-methylbenzyloxy)bis(2-propenyloxy)-p-tert-butylcalix4]arenes were obtained. Alkylation of the monosubstituted calixarene yields the corresponding trisubstituted derivative. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|