Influence of the nature of the base electrolyte on the regioselectivity of the cathodic hydrodimerization of 1-acetylnaphthalene in an aprotic medium
摘要:
The electrolysis of 1-acetylnaphthalene at a controlled potential [DMF, Ba.(ClO4)2] leads to the formation of 5-acetyl-1,2,4,5-tetrahydro-2-methyl-2-(1-naphthyl)-1,4-methano-3-benzoxepine (yield of 60%); this is explained by the stabilization of the dimeric dianion of the "head-tail" type by the Ba2+ cations. The formation of 2,3-dimethyl-2,3-di-(1-naphthyl)-butane-2,3-diol is observed with the acylotropic rearrangement of the intermediate anion, leading to 2-acetylnaphthalene, in the presence of lithium cations.
Electrochemical reactions. Part II. The structure of an unusual product from the reduction of 1-acetylnaphthalene
作者:J. Grimshaw、E. J. F. Rea
DOI:10.1039/j39670002628
日期:——
Electro-reduction of 1-acetylnaphthalene in alkaline solution gave the substituted tetrahydro-1,4-methano-3-benzoxepin (I) and not the expected pinacol. The structure of this compound is deduced from its spectral properties and its conversion into 1-(4-acetyl-1-naphthyl)-1-(1-naphthyl)ethane (II) on treatment with acid. The reduction of 1-acetylnaphthalene in neutral medium also gave (I). In acid medium
Influence of the nature of the base electrolyte on the regioselectivity of the cathodic hydrodimerization of 1-acetylnaphthalene in an aprotic medium
作者:V. P. Gul'tyai、T. Ya. Rubinskaya、A. S. Mendkovich
DOI:10.1007/bf00965434
日期:1991.2
The electrolysis of 1-acetylnaphthalene at a controlled potential [DMF, Ba.(ClO4)2] leads to the formation of 5-acetyl-1,2,4,5-tetrahydro-2-methyl-2-(1-naphthyl)-1,4-methano-3-benzoxepine (yield of 60%); this is explained by the stabilization of the dimeric dianion of the "head-tail" type by the Ba2+ cations. The formation of 2,3-dimethyl-2,3-di-(1-naphthyl)-butane-2,3-diol is observed with the acylotropic rearrangement of the intermediate anion, leading to 2-acetylnaphthalene, in the presence of lithium cations.