How is 1-(Tetradecanoyloxy)-2,5-pyrrolidinedione (CAS: 69888-86-4) typically synthesized?

1-(Tetradecanoyloxy)-2,5-pyrrolidinedione is typically synthesized using the Wittig reaction or a variation of the Claisen condensation. The key steps involve the formation of a tetradecanoyl ylide followed by its addition to a pyrrolidine derivative. The reaction is catalyzed by triphenylphosphine or a similar reagent, and the product is isolated by crystallization from an appropriate solvent. The yield is generally good, and the product is purified by recrystallization.