Efficient Functionalizations of Heteroatom-Bridged Calix[2]arene[2]triazines on the Larger Rim
作者:Hai-Bo Yang、De-Xian Wang、Qi-Qiang Wang、Mei-Xiang Wang
DOI:10.1021/jo070001a
日期:2007.5.1
Heteroatom-bridged dichlorinated calix[2]arene[2]triazines, which were synthesized from the fragment coupling reactions of cyanuric chloride and various aromatic dinucleophiles, are a unique type of platform for the construction of functional macrocyclic host molecules. Utilizing a very convenient and straightforward nucleophilic displacement reaction of dichlorinated tetraoxacalix[2]arene[2]triazine by various
A General and High Yielding Fragment Coupling Synthesis of Heteroatom-Bridged Calixarenes and the Unprecedented Examples of Calixarene Cavity Fine-Tuned by Bridging Heteroatoms
作者:Mei-Xiang Wang、Hai-Bo Yang
DOI:10.1021/ja0465092
日期:2004.12.1
N,N'-dimethyl-m-phenylenediamine. These novel macrocycles, which belong to the next generation of calixarenes or cyclophanes, form a unique cavity that is resulted from two isolated benzene planes and two bis-heteroatom-conjugated triazine planes in a 1,3-alternate fashion. The nature of the bridging heteroatoms, i.e., combination of the electronic, conjugative, and steric effects of the nitrogen and
以氰尿酰氯和间苯二酚、3-氨基苯酚、间苯二胺和 N 为原料,通过异常高产率和高效的片段偶联方法合成了许多氮杂和/或氧代桥接杯[2]芳烃[2]三嗪,N'-二甲基-间苯二胺。这些属于下一代杯芳烃或环芳烃的新型大环形成一个独特的空腔,该空腔由两个孤立的苯平面和两个双杂原子共轭三嗪平面以 1,3-交替方式形成。桥接杂原子的性质,即氮和氧原子的电子、共轭和空间效应的结合,强烈地调节腔尺寸,产生一组微调的腔,其中两个苯环之间的距离在上边缘范围从 5.011 到 7.979 A。N,N'-二甲基化四氮杂杯[2]芳烃[2]三嗪和四氮杂杯[2]芳烃[2]三嗪之间的多重分子间氢键相互作用导致形成无限的一维链结构和二维锯齿状层状结构。结构,分别为固态。易于制备和进一步的化学操作,以及易于调节的腔结构,使这些氮杂和/或氧代桥连杯[2]芳烃[2]三嗪成为超分子化学研究中的独特平台。