| 钯(II)配合物和氯化锌在DMF中阴极还原的动力学 |
| |
| 引用本文： | 章萍萍,张五昌,张挺芳,周文娟,王志勤.钯(II)配合物和氯化锌在DMF中阴极还原的动力学[J].物理化学学报,1992,8(5):668-672. |
| |
| 作者姓名： | 章萍萍 张五昌 张挺芳 周文娟 王志勤 |
| |
| 作者单位： | Department of Chemistry, East China Normal University, Shanghai 200062; Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai 200032 |
| |
| 摘 要： | 烯丙基化合物在钯催化下与碳亲核试剂的反应已成为碳一碳键合成的手段.1989年王志勤等研究报导,在DMF溶液中和氯化锌存在下,钯催化醋酸烯丙酯与羰基化合物电化学还原生成高产率的醇.我们对此反应的机理进行了研究,首先用线性电势扫描法确定各电还原反应的还原电势,得出在实验条件下,氯化锌比π-烯丙基钯配合物容易还原,然后
|
| 关 键 词： | 二氯二(三苯基膦)合钯(II) 氯化锌 阴极还原 电极过程动力学参数 |
| 收稿时间： | 1991-04-08 |
| 修稿时间： | 1991-10-19 |
The Electrode Kinetics of Cathodic Reduction of Pd(II)-Complex and Zinc Chloride in DMF |
| |
| Zhang Pingping,Zhang Wuchang,Zhang Tingfang,Zhou Wenjuan,Wang Zhiqin.The Electrode Kinetics of Cathodic Reduction of Pd(II)-Complex and Zinc Chloride in DMF[J].Acta Physico-Chimica Sinica,1992,8(5):668-672. |
| |
| Authors: | Zhang Pingping Zhang Wuchang Zhang Tingfang Zhou Wenjuan Wang Zhiqin |
| |
| Institution: | Department of Chemistry, East China Normal University, Shanghai 200062; Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai 200032 |
| |
| Abstract: | In this paper the electrode kinetics of cathodic reduction of dichloro-bis(triphenyl-phosphine) palladium complex and zinc chloride in DMF was studied. Using electro-chemical techniques we found that the reduction of Pd(PPh_3)_2Cl_2 is irreversible and is charge transfer controlled. The J~0(exchange current) and α(transfer coefficient) were 5.67×10~(-8) A and 0.15 respectively. We also confirmed that the reduction of ZnCl_2 in DMF is diffusion-charge transfer controlled. |
| |
| Keywords: | Dichloro-bis(triphenylphosphine) palladium Zinc chloride Cathodic reduction Kinetics parameters of electrode processes |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《物理化学学报》浏览原始摘要信息 |
| 点击此处可从《物理化学学报》下载免费的PDF全文 |
|
