What is an aziridinium?

Answer 1

An aziridinium is a cation formed by protonation of an aziridine.

Answer 2

Aziridinium is a three-membered heterocyclic ring containing a positively charged nitrogen atom. It is a reactive intermediate often used in organic synthesis for cycloaddition reactions and as a precursor for various functional groups. Aziridinium compounds are important intermediates in organic chemistry due to their ability to undergo nucleophilic substitution reactions.