Synthesis of Oxygen-Free [2]Rotaxanes: Recognition of Diarylguanidinium Ions by Tetraazacyclophanes

Journal
Organic Letters
Journal Volume
20
Journal Issue
8
Pages
2416-2419
Date Issued
2018
Author(s)
Chang, Y.-H.
Lee, Y.-J.
Lai, C.-C.
Liu, Y.-H.
Chiu, S.-H.
DOI
URI
Abstract
Simple cyclophanes containing four distant amino N atoms or ether O atoms behave as hosts for the threading of guest diarylguanidinium ions. The recognition system exhibits high synthetic flexibility, allowing unique O-free [2]rotaxanes to be synthesized efficiently (yields of up to 80%) through both "threading-followed-by-stoppering" and "clipping" approaches.
SDGs

[SDGs]SDG3

Type
journal article

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