o-?的合成-巯基[聚(乙烯氧基)]-o'-烷基对苯二酚衍生物和新型假环紫杉烷的形成

H. Xi, Xiaoqiang Sun, Yang Yang, Q. Meng, Yi Pan, Hongwen Hu
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引用次数: 0

摘要

以不对称原料为原料,在温和的温度下,通过多工序反应,设计并合成了一系列以硫醇为末端的单官能化对苯二酚低聚醚链。在热力学控制的自组装过程中,以富π电子的对苯二酚低聚醚硫醇和缺π电子的环双(百草草-对苯)(CPQT)为基础合成了几种伪环紫杉烷。此外,在自组装体系中加入了金阳离子。硫醇/Au体系的1H NMR研究表明,Au3+是假环紫杉烷或轮紫杉烷的有效末端阻断剂;伪烷可以在不同的温度下脱螺纹或再螺纹。这些可以成为未来发展机电和光电通信系统以及能够存储和处理信息的设备的基础。
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Synthesis of o-?-mercapto [poly(ethyleneoxy)]-o'-alkylhydroquinol derivatives and formation of novel pseudorotaxanes
A series of monofunctionalized hydroquinol oligoether chains terminated by thiols were designed and synthesized from unsymmetric starting materials in good yields by multi-procedure reactions at mild temperatures. In a thermodynamically controlled self-assembly process, several pseudorotaxanes based on the π-electron-rich hydroquinol oligoether thiols and π-electron deficient cyclobis(paraquat-p-phenylene) (CPQT) were formed. Furthermore, a gold cation was added to the self-assembly systems and 1H NMR studies on the thiol/Au systems revealed that Au3+ is an efficient terminal stopper of pseudorotaxanes or rotaxanes; the pseudorotaxane can be unthreaded or rethreaded at different temperatures. These could be a basis for the future development of mechanoelectrical and photoelectrical communication systems, and devices capable of storing and processing information.
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