Atsüülbromiide

Atsüülbromiide is a chemical compound with the molecular formula C₂H₅BrO. It is an acyl halide, specifically a bromoalkane derivative. The compound features a carbonyl group (C=O) bonded to an ethyl group (C₂H₅) and a bromine atom (Br). Atsüülbromiide is a colorless liquid at room temperature and is characterized by its pungent odor.

This compound is a reactive intermediate in organic synthesis. Its reactivity stems from the polarized carbonyl group and the good leaving group ability of the bromide ion. Atsüülbromiide can participate in various nucleophilic acyl substitution reactions. For example, it reacts readily with alcohols to form esters, with amines to form amides, and with water to form carboxylic acids. These reactions are often used to introduce the acetyl group (CH₃CO-) into other molecules. Due to its reactivity, atsüülbromiide is typically prepared and used immediately in subsequent reactions rather than being stored for extended periods. It is sensitive to moisture and requires careful handling. Safety precautions, such as working in a well-ventilated area and wearing appropriate personal protective equipment, are necessary when handling atsüülbromiide due to its corrosive and irritating nature.