羰基化合物电化学烯丙基化电极过程的研究

Studies on the Electrode Processes of Electrochemical Allylatation of Carbonyl Compounds

在甲醇中,通过电还原循环二烯丙基锡试剂,使2-降冰片烷基甲醛和癸醛电化学烯丙基化,得到相应醇的产率分别为81％和86％。用电化学测试技术,确定了二溴烯丙基甲氧基锡的还原电势、还原过程的不可逆性以及扩散系数、阴极传递系数和交换电流密度等电化学参数。根据实验事实,提出了可能的反应机理。

An electrochemical allylatation of 2-norbornane formaldehyde and ndeeanal in methanol was achieved by the electroreductive regeneration of diallyltin reagent, affording the corresponding homoallyl alcohols in 81％ and 86％ yields respectively. Using electrochemical techniques, we determined reduced potential of MeO(Br)_2 SnCH_2CH=CH_2, irreversible cathode reaction and electrochemical parameters D, α and J^0. From the experimental facts, we put forward the possible reaction mechanism.