Para-acylcalix[6]arenes: their synthesis, per-O-functionalisation, solid-state structures and interfacial assembly properties
作者:Said Jebors、Barbara Leśniewska、Oleksandr Shkurenko、Kinga Suwińska、Anthony W. Coleman
DOI:10.1007/s10847-010-9769-5
日期:2010.10
The para-acylcalix[6]arenes bearing butanoyl, hexanoyl and octanoyl chains have been synthesized by Friedel–Crafts acylation of the parent calixarene. Persubstitution at the phenolic face was achieved to yield the methoxy-diethoxy, ethoxycarbonylmethoxy, methoxycarboxylic acid and butoxysulphonate derivatives. In the case of the derivatives, 5,11,17,23,29,35-hexa-octanoyl-37,38,39,40,41,42-hexa-methoxy-diethoxy-calix[6]arene, 5,11,17,23,29,35-hexa-butanoyl-37,38,39,40,41,42-hexaethoxycarbonyl methoxy-calix[6]arene and 5,11,17,23,29,35-hexa-octanoyl-37,38,39,40,41,42-hexaethoxycarbonyl methoxy-calix[6]arene the solid state structures were determined and show inclusion of two ester groups in the cavity. While for the para-acylcalix[6]arenes no stable monolayers can be formed at the air–water interface, stable monolayers are formed with the methoxy-diethoxy, ethoxycarbonylmethoxy, methoxycarboxylato compounds which show apparent molecular areas in the range 150–200 Å2 depending on the length of the acyl chains.
通过母体杯
芳烃的傅克酰化合成了带有丁酰基、己酰基和辛酰基链的对酰基杯[6]
芳烃。在
酚表面实现全取代,产生甲氧基-二乙氧基、乙氧基羰基甲氧基、甲氧基
羧酸和丁氧基
磺酸盐衍
生物。就衍
生物而言,5,11,17,23,29,35-六-辛酰基-37,38,39,40,41,42-六-甲氧基-二乙氧基-杯[6]
芳烃,5,11 ,17,23,29,35-六丁酰基-37,38,39,40,41,42-六乙氧基羰基甲氧基-杯[6]
芳烃和5,11,17,23,29,35-六辛酰基- 37,38,39,40,41,42-六乙氧基羰基甲氧基-杯[6]
芳烃的固态结构被确定并且显示出在空腔中包含两个酯基团。虽然对酰基杯[6]
芳烃在空气-
水界面上不能形成稳定的单分子层,但用甲氧基二乙氧基、乙氧基羰基甲氧基、甲氧基羧基化合物形成稳定的单分子层,其表观分子面积在 150–200 Å2 范围内,具体取决于与酰基链的长度有关。