title: Cyclic [2]Catenane Dimers, Trimers, and Tetramers.
abstract: Dimeric, trimeric, and tetrameric cyclic [2]catenanes have been prepared directly through one-pot sodium-ion-templated dynamic imine formation from a diamine and a tetraaldehyde. NaBH4 mediated reduction of the labile imino bonds of these cyclic [2]catenane oligomers, followed by methylation of the resulting secondary amino groups enabled the isolation and characterization of oligomeric cyclic [2]catenanes as stable, covalently linked compounds.
authors: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 (Taiwan, R.O.C.).
authors: Yi-Wei
authors: YW
authors: Wu
authors: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 (Taiwan, R.O.C.).
authors: Shun-Te
authors: ST
authors: Tung
authors: Institute of Molecular Biology, National Chung Hsing University and Department of Medical Genetics, China Medical University Hospital, Taichung (Taiwan, R.O.C.).
authors: Chien-Chen
authors: CC
authors: Lai
authors: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 (Taiwan, R.O.C.).
authors: Yi-Hung
authors: YH
authors: Liu
authors: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 (Taiwan, R.O.C.).
authors: Shie-Ming
authors: SM
authors: Peng
authors: Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 (Taiwan, R.O.C.). shchiu@ntu.edu.tw.
authors: Sheng-Hsien
authors: SH
authors: Chiu
keywords: catenanes; dynamic self-assembly; imines; supramolecular chemistry; template synthesis