在这里,我们报告了六个溴化2-取代的咪唑鎓和六个六氟-2-取代的咪唑鎓三氟甲磺酸酯的合成,电化学和计算评估。所有最终化合物均通过廉价的原料通过2个或更少的合成步骤获得,并且显示出单一的,不可逆的电化学还原。还原电位的范围大于1 V,具体取决于2取代基的电子吸收能力。溴化咪唑鎓盐(例如Bn 2(H)ImBr)相 对于Fc / Fc +降低E 1/2 = -2.70 V ,而吸电子的含溴类似物Bn 2(Br)ImBr相对于Fc / Fc仅降低-1.58 V Fc +。的咪唑鎓溴化物服从线性自由能关系到σ还原电位米哈米特常数,而三氟甲磺酸酯的咪唑与σ更好关联p哈米特常数。这些结果表明,2取代基的稳定作用对阴离子敏感,在将溴化物交换为三氟甲磺酸盐时,从诱导到共振会发生变化。由密度泛函理论预测的咪唑阳离子和还原物种的最佳结构的电子亲和力与三氟甲磺酸酯的实验数据更接近,这表明三氟甲磺酸酯阴离子不会像溴
Gas-Phase Chemistry of Benzyl Cations in Dissociation of <b><i>N</i></b>-Benzylammonium and <b><i>N</i></b>-Benzyliminium Ions Studied by Mass Spectrometry
作者:Yunfeng Chai、Lin Wang、Hezhi Sun、Cheng Guo、Yuanjiang Pan
DOI:10.1007/s13361-012-0344-8
日期:2012.5.1
substrates for nucleophilic attack at the phenyl ring. The reactions of benzyl cations were also related to the neutral counterparts. For example, in electron transfer reaction, the neutral counterpart should have low ionization energy and in nucleophilic aromatic substitutionreaction, the neutral counterpart should be piperazine or analogues. This study provided a panoramic view of the reactions of benzyl
Method for treating neurological disorders with imidazolium and imidazolinium compounds
申请人:Agency for Science, Technology and Research
公开号:EP2803356A1
公开(公告)日:2014-11-19
There is presently provided methods for delivering a neuroprotective agent to a neural cell. The methods comprise contacting a neural cell with an imidazolium or imidazolinium compound as described herein, including an imidazolium or imidazolinium salt.
METHOD FOR TREATING NEUROLOGICAL DISORDERS WITH IMIDAZOLIUM AND IMIDAZOLINIUM COMPOUNDS
申请人:Agency for Science, Technology And Research
公开号:EP2271338A1
公开(公告)日:2011-01-12
METHOD FOR TREATING FIBROSIS AND CANCER WITH IMIDAZOLIUM AND IMIDAZOLINIUM COMPOUNDS
申请人:Zhuo Lang
公开号:US20110178040A1
公开(公告)日:2011-07-21
There is presently provided methods for delivering an anti-fibrotic or anti-cancer agent to a cell. The methods comprise contacting a cell with an effective amount of imidazolium and imidazolinium compounds as described herein, including imidazolium and imidazolinium salts.