1. Introduction: The “flavorist” in the chemical world – 4-dimethylaminopyridine (DMAP) In the vast world of chemical reactions, catalysts are like seasoners with superb skills. They can cleverly adjust the speed and direction of the reaction, allowing the originally ordinary molecules to collide with colorful chemical light. Among many catalysts, 4-dimethylaminopyridine (DMAP) stands out with...