Esterification is one of the most fundamental reactions in organic chemistry. It has a great application in both laboratory work and industrial processes on account of its versatility. In this study sulfamic acid (H2NSO3H, SA) was used as an efficient catalyst for the synthesis of fatty acid methyl and ethyl esters (FAEEs and FAMEs) under different conditions (fatty acid type, molar ratio, temperature, and % catalyst). Esterification using methanol and ethanol resulted in a higher fatty acid alkyl ester yield. The best result was obtained with ethanol, which yielded 91.2–97.7% FAEEs. However, in the same conditions the FAMEs were obtained with lower yields. These results demonstrate that this green methodology has high potential for the synthesis of fatty acid alkyl esters.

中文翻译：

---

氨基磺酸：FFA酯化的高效酸催化剂

酯化反应是有机化学中最基本的反应之一。由于其多功能性，它在实验室工作和工业过程中都有很大的应用。在本研究中，氨基磺酸（H2NSO3H，SA）被用作在不同条件（脂肪酸类型、摩尔比、温度和催化剂百分比）下合成脂肪酸甲酯和乙酯（FAEE 和 FAME）的有效催化剂。使用甲醇和乙醇的酯化导致更高的脂肪酸烷基酯产率。使用乙醇获得了最好的结果，产生了 91.2-97.7% 的 FAEE。然而，在相同条件下，获得的 FAME 产率较低。这些结果表明，这种绿色方法在合成脂肪酸烷基酯方面具有很高的潜力。