Ultrasonic Effects on Electroorganic Processes. Part 22. Cathodic Crossed Hydrocoupling of Acetone with Acrylonitrile
Ultrasonic Effects on Electroorganic Processes. Part 22. Cathodic Crossed Hydrocoupling of Acetone with Acrylonitrile
复制标题
超声波对有机电过程的影响。
DOI：
10.1246/bcsj.75.123
复制
发表时间：
2002
影响因子：
4
通讯作者：
T. Nonaka
中科院分区：
文献类型：
--
作者：
M. Atobe;Sou Fujiwara;T. Nonaka
研究了超声波对丙酮与丙烯腈阴极交叉水耦合的影响。丙酮和丙烯腈混合物的阴极还原中所有产物的总电流效率受超声波辐照影响很小，而阴极还原中形成的交叉水偶联产物的产物选择性受辐照显着提高。这种超声波效应可以合理地解释为由于超声波辐射促进了作为亲电子试剂的丙烯腈分子从大量电解溶液到阴极表面的传质。因此，可以有目的地应用超声波效应来控制交叉偶联反应中的产物选择性。
The ultrasonic effects on the cathodic-crossed hydrocoupling of acetone with acrylonitrile were examined. The total current efficiency of all products in the cathodic reduction of a mixture of acetone and acrylonitrile was little influenced by ultrasonic irradiation, while the product selectivity for crossed hydrocoupling products formed in the cathodic reduction was significantly increased by irradiation. This ultrasonic effect could be rationalized as being due to mass-transport promotion of acrylonitrile molecules as an electrophile to the cathode surface from the bulk of the electrolytic solution by the ultrasonic irradiation. Thus, the ultrasonic effect can be purposively applied to control the product selectivity in the crossed coupling reaction.