Aromatic heterocycles are also capable of undergoing electrophilic aromatic substitution. For example, when furan is treated with

Question:

Aromatic heterocycles are also capable of undergoing electrophilic aromatic substitution. For example, when furan is treated with an electrophile, an electrophilic aromatic substitution reaction occurs in which the electrophile is installed exclusively at the C2 position. Explain why this reaction occurs at the C2 position, rather than the C3 position.