Question:

Write the curved arrow mechanism for the protonation of

Last updated: 8/7/2022

Write the curved arrow mechanism for the protonation of

Write the curved arrow mechanism for the protonation of imidazole. Use H* (the proton) as the acid. Look at the "availability" of the lone pairs and resonance after protonation (resonance stabilization), to decide which one of the two nitrogens to protonate.