Tin-Catalyzed Esterification and Transesterification Reactions: A Review

Figure 7

Acid-catalyzed FFA esterification with ethyl alcohol in WCO samples [10]. Reaction conditions: ethyl alcohol (380.0 mmol, 21.8 mL), WCO (13.0 g; 13.2 mL), SnCl₂·2H₂O (0.30 mmol), pTSA (1.20 mmol), reflux temperature.