Electrochemical studies of Ni(cyclam)2+-catalyzed annulation reactions

被引:52
作者
Olivero, S [1 ]
Rolland, JP [1 ]
Dunach, E [1 ]
机构
[1] Univ Nice, Lab Chim Mol, CNRS, F-06108 Nice 2, France
关键词
D O I
10.1021/om980247t
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Cyclic voltammetry and preparative-scale electrochemical studies on the intramolecular cyclization of allyl 2-halophenyl ethers catalyzed by Ni(II)-cyclam complexes leads us to propose a mechanism involving Ni(I) and Ni(III) intermediate species. The role of Mg2+ ions in the reactivity and selectivity of the process is discussed. The Nit cyclam)Br-2-catalyzed electrosynthesis of dihydrobenzofurans and dihydrobenzopyrans from unsaturated side-chain aryl halide derivatives is effected in good yields in the presence of a magnesium anode.
引用
收藏
页码:3747 / 3753
页数:7
相关论文
共 30 条