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. Author manuscript; available in PMC: 2017 Apr 13.
Published in final edited form as: Supramol Chem. 2016 Apr 13;28(9-10):825–834. doi: 10.1080/10610278.2016.1167893

Scheme 1.

Scheme 1

Synthesis of cationic acyclic CB[n]-type container M2NH3. Conditions: a) CF3CO2H / Ac2O, 70 °C, 3 h, 36%, b) DMSO, NaN3, 80 °C, 12 h, 88%, c) DMSO, H2O, PPh3, 80 °C, 4h then HCl, 81%.