One-pot synthesis of donor-acceptor [2]rotaxanes based on cryptand-paraquat recognition motif

被引:16
|
作者
Xu, Zhikai [1 ]
Jiang, Lasheng [1 ]
Feng, Yahui [1 ]
Zhang, Suhui [1 ]
Liang, Jidong [1 ]
Pan, Shaowu [1 ]
Yang, Yu [1 ]
Yang, Dengke [1 ]
Cai, Yuepeng [1 ]
机构
[1] S China Normal Univ, Sch Chem & Environm, Guangzhou 510631, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
BIS(CROWN ETHER) HOST; BETA-CYCLODEXTRIN; SUPRAMOLECULAR CHEMISTRY; POLYMERIC ROTAXANE; OLEFIN METATHESIS; ASSEMBLY BEHAVIOR; BORROMEAN RINGS; TACO COMPLEX; DERIVATIVES; GUEST;
D O I
10.1039/c0ob00629g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Two novel cryptand-based [2]rotaxanes were synthesized by a facile one-pot reaction from three neutral precursors: easily accessible cryptand host 1 and commercially available 4,4'-bipyridine and 3,5-di-tert-butylbenzyl bromide. Their structures were confirmed by H-1 NMR, 2D NMR, HRMS and X-ray analysis. Moreover, two [2]pseudorotaxanes based on the same cryptand hosts and dibenzyl viologen guest 3 were also demonstrated both in solution and in the solid state, which are different from previously reported [3]pseudorotaxane-like complexes formed by dimethyl viologen guest 2 and the cryptands.
引用
收藏
页码:1237 / 1243
页数:7
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