Improved recognition of alkylammonium salts by ion pair recognition based on a novel heteroditopic pillar [5] arene receptor

…, Y Guan, L Wu, C Deng, X Hu, J Jiang, C Lin, L Wang

Index: Ni, Mengfei; Guan, Yangfan; Wu, Lin; Deng, Chao; Hu, Xiaoyu; Jiang, Juli; Lin, Chen; Wang, Leyong Tetrahedron Letters, 2012 , vol. 53, # 47 p. 6409 - 6413

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Citation Number: 25

Abstract

A novel pillar [5] arene-based heteroditopic receptor for ion pair recognition of alkylammonium salts with different alkyl chain lengths and different counterions was prepared, which showed the best association constant enhancement (71times) to n-BuNH3+ Cl− compared with monotopic receptor 1, 4-dimethoxypillar [5] arene over corresponding Br− and CF3COO− salts in chloroform.