SEARCH Articles Figures Tables 2-substituted thiophenes Aromaticity electrophilic aromatic substitution Aromatics electrophilic substitution Electrophile Electrophilic aromatic substitution Furan aromaticity Furan electrophilic aromatic Furan electrophilic aromatic substitution Furan substitution Furans 2-substituted Pyrrole aromaticity Pyrrole electrophilic aromatic substitution Pyrrole electrophilic substitution Pyrroles electrophilic Pyrroles electrophilic aromatic substitution Pyrroles electrophilic substitution Pyrroles substitution Substitution electrophilic aromatic Substitution electrophilic aromatic substitutions Substitution thiophene Thiophene electrophilic aromatic Thiophene electrophilic aromatic substitution Thiophenes aromaticity Thiophenes electrophilic aromatic substitution Thiophenes electrophilic substitutions Thiophenes substitution