T-Butyl 4-bromobutyrate丨CAS 110661-91-1

t-Butyl 4-bromobutyrate is primarily used as a synthetic intermediate in the preparation of bioactive compounds, including pharmaceuticals, enzyme inhibitors, and chiral building blocks. Its bromine atom allows for nucleophilic substitution reactions, enabling the introduction of various functional groups such as amines, thiols, and alcohols. In medicinal chemistry, it is applied in the synthesis of small-molecule drugs, prodrugs, and intermediates for active pharmaceutical ingredients (APIs). The t-butyl ester group also provides protection for carboxylic acids, allowing selective reactions to occur at other positions before deprotection under acidic conditions. Additionally, it is used in organic research and material science for preparing functionalized esters, heterocyclic compounds, and polymer precursors.

The benefits of t-Butyl 4-bromobutyrate include its reactive bromine site and protected ester group, which provide versatility in multi-step organic syntheses. The t-butyl ester offers chemical stability under basic and neutral conditions while allowing easy removal under acidic conditions, facilitating selective transformations. Its high reactivity enables efficient nucleophilic substitution, cross-coupling, and functional group introduction, reducing reaction times and improving yields. The compound is also compatible with common organic solvents and reaction conditions, making it convenient for laboratory and industrial applications. Furthermore, it supports the synthesis of structurally complex molecules and chiral intermediates, making it valuable in drug discovery, agrochemical development, and material research.