2butenone

2-Butenone, also known as methyl vinyl ketone (MVK), is an organic compound with the chemical formula C4H6O. It is an alpha,beta-unsaturated ketone, characterized by a carbonyl group conjugated with a carbon-carbon double bond. In its pure form, 2-butenone is a colorless, volatile liquid with a pungent odor. It is flammable and can polymerize easily, especially when exposed to heat or light, and is often stabilized with inhibitors.

The compound is soluble in many organic solvents and also shows some solubility in water. Its reactivity stems from both the carbonyl group and the double bond, making it a useful intermediate in organic synthesis. It readily undergoes addition reactions, particularly Michael additions, due to the electrophilic nature of the beta-carbon.

2-Butenone is produced industrially through various methods, including the condensation of acetone and formaldehyde. It finds applications as a chemical intermediate in the synthesis of pharmaceuticals, pesticides, and polymers. Due to its reactivity and potential toxicity, it is handled with care in laboratory and industrial settings. Exposure to 2-butenone can cause irritation to the eyes, skin, and respiratory tract.