中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
阿替洛尔 | (RS)-atenolol | 29122-68-7 | C14H22N2O3 | 266.34 |
本文采用分光光度法研究了在常数离子强度为0.50 mol dm-3的硫酸水溶液中,锰(II)催化下铈(IV)硫酸盐对阿替洛尔的氧化动力学和机理。实验结果表明,铈(IV)的反应动力学为一级反应,而锰(II)和阿替洛尔的反应动力学为分数级反应。产物的加入对反应速率没有影响。通过红外光谱和质谱数据,鉴定了主要产物为2-(4-(2-羟基-3-氧代丙氧基)苯基)乙酰胺。药物底物和试剂的化学计量比为2:1。加入的H2SO4、SO42-和HSO4-对反应速率影响很小。在指定的实验条件下,HCe(SO4)3-被发现是主要的反应物种。确定了所提出机理的速率常数(
The kinetics and mechanism of manganese(II) catalyzed oxidation of atenolol by cerium(IV) sulfate in aqueous H2SO4 at a constant ionic strength of 0.50 mol dm-3 was studied spectrophotometrically. The reaction showed first order kinetics in cerium(IV) whereas fractional order in both manganese(II) and atenolol. Addition of products showed no effect on the rate of the reaction. The main product, 2-(4-(2-hydroxy-3-oxopropoxy)phenyl)acetamide, was identified with the aid of IR and mass spectral data. Stoichiometry with respect to the drug substrate and reagent was established as 2:1. Added H2SO4, SO4
2− and HSO4
− showed negligible effect on the rate of the reaction. HCe(SO4)3
− was found to be the predominant reactive species under the specified experimental conditions. The rate constants (
本文采用分光光度法研究了在常数离子强度为0.50 mol dm-3的硫酸水溶液中,锰(II)催化下铈(IV)硫酸盐对阿替洛尔的氧化动力学和机理。实验结果表明,铈(IV)的反应动力学为一级反应,而锰(II)和阿替洛尔的反应动力学为分数级反应。产物的加入对反应速率没有影响。通过红外光谱和质谱数据,鉴定了主要产物为2-(4-(2-羟基-3-氧代丙氧基)苯基)乙酰胺。药物底物和试剂的化学计量比为2:1。加入的H2SO4、SO42-和HSO4-对反应速率影响很小。在指定的实验条件下,HCe(SO4)3-被发现是主要的反应物种。确定了所提出机理的速率常数(