作者:A.W.K. Chan、W.D. Crow、I. Gosney
DOI:10.1016/s0040-4020(01)92824-8
日期:1970.1
3-Hydroxyisothiazole exists as the lactim in nonpolar solvents, the lactam form predominating in aqueous solution. Acylation, although extremely rapid in nonpolar solvents, depends on the relative rates of reaction of the two tautomers rather than on their relative proportions. The size of the acyl group, and the steric requirements of the catalyst, are shown to be the critical factors in determining
3-羟基异噻唑作为内酰胺存在于非极性溶剂中,内酰胺形式在水溶液中占主导地位。尽管在非极性溶剂中酰化反应非常迅速,但酰化反应取决于两种互变异构体的相对反应速率,而不是取决于它们的相对比例。酰基的大小和催化剂的空间要求被证明是确定酰化位点的关键因素。3-羟基异噻唑的烷基化导致产物的混合物,其中3-烷氧基异噻唑占主导。没有观察到烷基的迁移。