Bis-p-xylyl[26]crown-6/pyridinium ion recognition:: one-pot synthesis of molecular shuttles

TETRAHEDRON LETTERS

卷:49

Article

Huang, Yi-Lin¹  Lin, Chi-Feng¹  Cheng, Pin-Nan¹  Lai, Chien-Chen^2,3  Liu, Yi-Hung¹  Peng, Shie-Ming¹  Chiu, Sheng-Hsien¹ 

[1] Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan

[2] China Med Univ Hosp, Dept Med Genet, Taichung, Taiwan

[3] Natl Chung Hsing Univ, Inst Mol Biol, Taipei, Taiwan

关键词: crown ether;    molecular shuttle;    pyridinium ion;    rotaxane;   

DOI  :  10.1016/j.tetlet.2008.01.020

来源: Elsevier

【 摘 要 】

Simple one-pot syntheses allow the preparation of [2]rotaxane-based degenerate molecular shuttles featuring the recognition of pyridinium ions by BPX26C6 macrocycles. Because of the weak interactions between the BPX26C6 and pyridinium units in the [2]rotaxanes in CD3COCD3, the rates of shuttling of the BPX26C6 moieties between the pyridinium stations are rapid, relative to those of DB24C8-based shuttles, on the NMR spectroscopic time scale at ambient temperature. (c) 2008 Elsevier Ltd. All rights reserved.

【 授权许可】

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