L-抗坏血酸-2-硫酸酯盐的合成

Synthesis of L-Ascorbic Acid-2-Sulphuric Acid Ester Salts

以焦硫酸钾为酯化剂，以吡啶为溶剂合成了Ｌ－ 抗坏血酸的稳定衍生物 Ｌ－ 抗坏血酸－ ２ － 硫酸酯二钾盐。该衍生物具有弱酸性，在弱碱中稳定。合成方法操作简便，收率高。

The stable derivative of L-ascorbic acid, L-ascorbic Acid-2-sulphuric acid ester dipotassium salts are synthesized using potassium pyrosulfate as esterifying agent and pyridine as solvent. The derivative has weak acidity and is stable in weak base solution. The synthesis method is simple and the yield is high.