Dimethyl sulfoxide (DMSO)

Regioselectivity Column chromatography NMR spectroscopy Catalyst Nucleophile Electrophile Recrystallization Hydrolysis Nucleophilic substitution Kinetics Cyclopropanation Neutralization Bromination TLC (thin-layer chromatography) NMR (nuclear magnetic resonance) Protecting group Epoxidation Leaving group Workup Workup and Purification Reaction Conditions Base Steric Effects Chemoselectivity Reaction Mechanism Electronic effects Solvent Effects Substituent Effects Acid catalyst Mild conditions Thiol compound Ring-Opening Reaction Activation Energy Electrophilic Aromatic Substitution (EAS) Base Catalysis Gas Chromatography-Mass Spectrometry (GC-MS) Grignard Reagent Isotope Labeling Phase-Transfer Catalysis (PTC) Phenyl ether Aromatics Spiro compound Reaction yield Convenient method Transition state Rate-determining step Superbase Cyclodehydration 1,2,4-Oxadiazole Reaction intermediate