Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, I-43124 Parma, Italy.
Org Lett. 2020 May 1;22(9):3702-3705. doi: 10.1021/acs.orglett.0c01191. Epub 2020 Apr 14.
We describe the synthesis of a new class of trisulfonamide calix[6]arene-based wheels that can bind dialkylviologen salts, in apolar media. The threading process occurs through a selective ion-pair recognition, established by the sulfonamide groups with the counterions of the bipyridinium salts, that dictates a conformational rearrangement of the corresponding pseudorotaxanes.
我们描述了一类新的三磺酰胺杯[6]芳烃轮的合成,这些轮可以在非极性介质中结合二烷基二价盐。穿线过程通过选择性的离子对识别发生,这是由磺酰胺基团与联吡啶盐的反离子建立的,这决定了相应的假轮烷的构象重排。