Pharma & Specialty Chemical Standards

Bromobutene, IUPAC name 3-bromobut-1-ene (C4H7Br, molecular weight 135.0 g/mol), is an alkyl halide with a four-carbon chain containing a terminal double bond and a bromine substituent at C3. Structurally, it exhibits sp² hybridization at the double bond and a polar C-Br bond. Therapeutically, it serves as a synthetic intermediate in pharmaceuticals, particularly for constructing complex molecules via nucleophilic substitution. Its physicochemical properties include moderate solubility in organic solvents and a high dipole moment due to bromine’s electronegativity. Mechanistically, it acts as an electrophilic alkylating agent, enabling carbon-carbon bond formation in drug synthesis pathways.