Description General description tert-Butyl acetoacetate (t-BAA) is a cheap and easy to store commercial reagent. Reaction demonstrated that the more hindered tert-butyl acetoacetate (t-BAA, la) is ca.15-20-fold more reactive than the more commonly used methyl or ethyl analogs. It is widely employed as an acetoacetylating reagent. Application tert-Butyl acetoacetate may be used in the synthesis of: • various acetoacetic acid derivatives • acetoacetates • acetoacetamides • 1-(diethylamino)-2-acetoacetoxypropane • (S)-tert-butyl 3-hydroxybutyrate • benzothiazole β-keto ester derivatives • 3,4-disubstituted pyrroles Packaging 1, 4 L in poly bottle 100, 500 mL in poly bottle