• E1cB elimination reaction
• Eder reaction
• Edman degradation
• Eglinton reaction
• Ehrlich-Sachs reaction
• Einhorn variant
• Einhorn-Brunner reaction
• Elbs persulfate oxidation
• Elbs reaction
• Electrochemical fluorination
• Electrocyclic reaction
• Electrophilic halogenation
• Electrophilic amination
• Elimination reaction
• Emde degradation
• Emmert reaction
• Ene reaction
• Enyne metathesis
• Epoxidation
• Erlenmeyer synthesis, Azlactone synthesis
• Erlenmeyer-Plöchl azlactone and amino acid synthesis
• Eschenmoser fragmentation
• Eschweiler-Clarke reaction
• Ester pyrolysis
• Ether cleavage
• Étard reaction
• Evans aldol