Ion-Pair Selective Conformational Rearrangement of Sulfonamide Calix[6]arene-Based Pseudorotaxanes

Org Lett. 2020 May 1;22(9):3702-3705. doi: 10.1021/acs.orglett.0c01191. Epub 2020 Apr 14.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't