Ethyl N-mesylazidoformimidate
Ethyl N-mesylazidoformimidate [N3-C(OEt)=NMs] was introduced by Lwowski 3. This versatile azide reacts with alkenes of different nucleophilicity 4.
We used the same azide to aziridinate substrates showing a low reactivity towards N3CO2Et 5.
