Polar Substituent Effects in the Bicyclo[1.1.1]pentane Ring System: Acidities of 3-Substituted Bicyclo[1.1.1]pentane-1-carboxylic Acids
作者:William Adcock、Yakup Baran、Antonello Filippi、Maurizio Speranza、Neil A. Trout
DOI:10.1021/jo040236b
日期:2005.2.1
series of 3-substituted (X) bicyclo [1.1.1]pent-1-yl carboxylic acids (1, Y = COOH). A comparison with available calculated data (MP2/6-311++G**// B3LYP/6-311+G**) reveals good agreement. The relative substituent effects are shown to be adequately described by a much lower level of theory (B3LYP/6-31+G*). Various correlations are presented which clearly point to polar field effects as being the origin of
报道了一系列3-取代的(X)双环[1.1.1]戊-1-基羧酸(1,Y = COOH)的实验气相酸度。与可用的计算数据(MP2 / 6-311 ++ G ** // B3LYP / 6-311 + G **)的比较显示出很好的一致性。通过低得多的理论值(B3LYP / 6-31 + G *)可以充分描述相对取代基的作用。提出了各种相关性,这些相关性明确指出极性场效应是相对酸度的来源。