a-thiophene-ring-with-a-bromine-substituent-undergoes-nitration-which-position-w

Question

A thiophene ring with a bromine substituent undergoes nitration. Which position will the nitro group most likely occupy?

Accepted Answer

Position 2, due to the electron-donating effect of sulfur

Answer

Position 3, influenced by the bromine's directing effect

Answer

Position 4, due to steric effects

Answer

Position 5, due to resonance effects