Additivity Parameters for Anodic Peak Potentials in [2.2]Metacyclophanes and Tetrahydropyrene Formation
作者:Koichi Torizuka、Takeo Sato
DOI:10.1246/bcsj.53.2411
日期:1980.8
The first anodic peak potentials Epa(O1) for sixteen [2.2]metacyclophanes were surveyed in order to correlate the peak potential with the number and position of the alkyl groups. The analysis of the data gives the additivity parameters, which call for cathodic shifts of 0.14 and 0.035 V per methyl group for R2 or R5 (5- or 13-position) and for substitution at the rest of the positions respectively. The controlled-potential electrolysis of the representative metacyclophanes gave excellent yields of the corresponding tetrahydropyrenes.
我们对十六种 [2.2]metacyclophanes 的第一阳极峰电位 Epa(O1) 进行了调查,以便将峰电位与烷基的数量和位置联系起来。数据分析得出了加性参数,即 R2 或 R5(5 位或 13 位)每个甲基的阴极位移分别为 0.14 V 和 0.035 V,其余位置的取代分别为 0.14 V 和 0.035 V。对具有代表性的偏环烷进行受控电位电解,可以获得极佳产率的相应四氢芘。