Second Generation of Calix[6]aza-Cryptands: Synthesis of Heteroditopic Receptors for Organic Ion Pairs
作者:Stéphane Le Gac、Mickaël Ménand、Ivan Jabin
DOI:10.1021/ol8021726
日期:2008.11.20
from an 1,3,5-tris-protected calix[6]hexa-amine. These heteroditopic receptors can bind ammonium ions or organic ion pair salts with a positive cooperativity. In regard to their functionalization at the 1,3,5-phenolic positions, these compounds constitute the first examples of a second generation of C3 v symmetrical calix[6]azacryptands.
从1,3,5-tris保护的杯[6]六胺可以有效合成在狭窄边缘装饰有阴离子结合基团的杯[6]氮杂密码子。这些异位受体可以以正协同性结合铵离子或有机离子对盐。关于它们在1,3,5-酚位置的官能化,这些化合物构成了第二代C3 v对称杯[6]氮杂密码子的第一例。