Dynamics calculations are described for carbocation rearrangements involving product-forming pathways with post-transition-state bifurcations. We show that noncovalent interactions with associated benzene rings (a simple model of aromatic amino acid side chains) can switch inherent dynamical tendencies for competing modes of disrotation, establishing that meaningful changes in dynamically controlled product selectivity can be achieved with few weak noncovalent interactions.

中文翻译：

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越过岔路口：碳正离子-π相互作用可以操纵面对过渡后状态分叉的反应的动态行为

动力学计算描述了碳转移的重排，涉及到具有过渡后状态分叉的产物形成途径。我们表明，与相关的苯环（芳香族氨基酸侧链的简单模型）的非共价相互作用可以切换固有的动力学趋势以竞争旋转模式，从而确立了动态控制的产品选择性的有意义的变化可以通过很少的弱非共价相互作用来实现。