The mono-and dialkylpyrrolidinetriones have been formulated as hydroxymaleimides. However, the enolic form of trialkylpyrrolidinetriones (11) is not possible. Since a search of the literature failed to reveal any trialkylpyrrolidinetriones, it seemed desirable to synthesize representative types for the purpose of observing their infrared absorption, color, stability and pharmacological behavior. The method of synthesis was adapted from that used for ...