Related Experiment Video
Updated: Jun 1, 2026

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
[1-(1-Adamantylamino)ethyl-idene]oxonium methane-sulfonate
Abstract:
In the title salt, C(12)H(20)NO(+)·CH(3)SO(3) (-), the [1-(1-adamantyl-amino)ethyl-idene]oxonium cations and methane-sulfonate anions are linked into chains along the a axis via O-H⋯O and N-H⋯O hydrogen bonds. All non-H atoms of the acetamido group are essentially planar, with a maximum deviation of 0.0085 (12) Å. In comparison with related structures, the carbonyl C=O bond is slightly elongated [1.249 (2) Å], whereas the amide C-N bond is shortened [1.292 (2) Å].
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