p-toluenesulfonates 3a-3k in ethanol/water 80:20 correlate well with the respective inductive substituent constants σ. The reaction constant ρ for the toluenesulfonates 3 is 10% larger than for the corresponding bromides 2, indicating somewhat more charge separation in the activation of the toluenesulfonates. Evidence is presented that stabilization of the resultant 1-adamantyl cations by induction involves graded
3-取代的
金刚烷基
对甲苯磺酸盐3a - 3k在
乙醇/
水80:20中的速率常数与各自的感应取代基常数σ紧密相关。甲
苯磺酸盐3的反应常数ρ比相应的
溴化物2大10%,这表明在甲
苯磺酸盐的活化中电荷分离稍微更多。证据表明,通过感应稳定生成的1-
金刚烷基阳离子涉及1,3-桥连,这在取代基为电离基团时是有利的,而正电子给体的稳定涉及C,C-超共轭。甲
苯磺酸盐3和
溴化物1的比率超过10 3,并且几乎独立于3个取代基。根据当前的假设,对此进行了讨论。