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  • 學位論文

利用「穿透後縮環法」合成以二級銨離子為基礎之高穩定性車輪烷分子

Using “Threading Followed by Shrinking” to Synthesize Highly Stable Dialkylammonium-Ion-Based Rotaxanes

指導教授 : 邱勝賢
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摘要


在本研究中,我們使用缺少氧原子以及具有兩個芳香基甲基碸(arylmethylsulfone) 的大環分子為主體分子,與雙[3,5-二甲基苄基]銨-四[3,5-雙(三氟甲基)苯基]硼酸之啞鈴形分子為客體分子,利用穿透後縮環法來合成車輪烷分子。將此 [2]準車輪烷分子進行光化學反應,照光之後從兩個芳香基甲基碸的部位脫去二氧化硫,所得到的 [2]車輪烷分子能在393 K的氘二甲亞碸 (CD3SOCD3) 溶液中穩定存活至少5小時。

並列摘要


We report a “threading followed by shrinking” approach toward rotaxane synthesis using an “oxygen-deficient” macrocycle containing two arylmethyl sulfone units and the dumbbell-shaped salt bis(3,5-dimethylbenzyl)ammonium tetrakis(3,5-trifluoromethylphenyl)borate as the host and guest components, respectively. Extruding SO2 from both of the arylmethyl sulfone motifs of the corresponding [2]pseudorotaxane resulted in a [2]rotaxane that was sufficiently stable to maintain its molecular integrity in CD3SOCD3 at 393 K for at least 5 h.

參考文獻


Credi, A.; Silvi, S.; Stoddart, J. F. Science 2004, 303, 1845–1849; (c) Iijima, T.;
M.; Apostoli, E.; Balzani, V.; Stoddart, J. F. Chem. Eur. J. 2004, 10, 6375–6392;
Angew. Chem. Int. Ed. 2004, 43, 1959–1962.
[2] Wasserman, E. J. Am. Chem. Soc. 1960, 82, 4433–4434.
[3] Harrison, I. T.; Harrison, S. J. Am. Chem. Soc. 1967, 89, 5723–5724.

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