Kinetics of acetonitrile-assisted oxidation of tertiary amines by hydrogen peroxide
Kinetics of acetonitrile-assisted oxidation of tertiary amines by hydrogen peroxide
复制标题
乙腈辅助过氧化氢氧化叔胺的动力学
DOI：
--
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
G. Laus
中科院分区：
文献类型：
--
作者：
G. Laus
在乙腈存在下，由于反应中间体的形成，过氧化氢水溶液氧化叔胺的速率增加。通过光度法定量活性氧化剂（推测为过氧乙酰亚胺酸）。乙腈辅助和非辅助氧化的活化参数在20至40 °C的温度范围内给出。辅助氧化的增加速率由低活化焓来解释，尽管活化熵由于高度有序的过渡态而更负。
The rate of oxidation of tertiary amines by aqueous hydrogen peroxide is increased in the presence of acetonitrile due to the formation of a reactive intermediate. The active oxidant, presumably peroxyacetimidic acid, was quantified by a photometric method. Activation parameters of the acetonitrile-assisted and non-assisted oxidations are given in the temperature range 20 to 40 °C. The increased rate of the assisted oxidation is explained by the low enthalpy of activation although the entropy of activation is more negative due to a highly ordered transition state.