In the synthesis of monoflourinated organic compounds, the reaction of potassium fluoride with mesylates and tosylates of alcohols affords fluoro derivatives when polyethylene glycol 400 is used as solvent and catalyst. The limitation of this reaction is the solvolysis of the leaving group by the solvent; the phenomenon is controlled by the degree of steric hindrance around the reaction centre.
在单
氟化有机化合物的合成中,
氟化
钾与醇的亚
磺酸酯和对
磺酸酯反应,在聚
乙烯醇400作为溶剂和催化剂的情况下可形成
氟衍
生物。该反应的限制在于溶剂对离去基团的溶解现象,这一现象受到反应中心周围立体阻碍程度的控制。