N,Nʼ-Disubstituted Methylenediimidazolium Salts: A Versatile Guest for Various Macrocycles

详细信息    查看全文

• 作者：Nadim Noujeim ; Lo&#x131 ; ̈ ; c Leclercq ; Andreea R. Schmitzer
• 刊名：Journal of Organic Chemistry
• 出版年：2008
• 出版时间：May 16, 2008
• 年：2008
• 卷：73
• 期：10
• 页码：3784 - 3790
• 全文大小：1484K
• 年卷期：v.73,no.10(May 16, 2008)
• ISSN：1520-6904

文摘

N,N’-Disubstituted methylenediimidazolium salts allow the formation of flexible inclusion complexes with β-cyclodextrin, cucurbit[7]uril, tetrapropoxycalix[4]arene, and dibenzo-24-crown-8 ether. Due to the salt nature of the imidazolium guest, the counterion largely determines its solubility in a given solvent. Moreover, by the judicious choice of the imidazolium substituents, inclusion complexes of guest salts were obtained with a variety of macrocyclic hosts, and the binding parameters of the inclusion were determined for each complex.