polycyclization reactions are described. Analyses of these results reveal a reactivity model that reaches beyond the energetics of the cascade itself, incorporating an ensemble of pre-cyclization conformations of the platinum–alkene reactant complex, only a subset of which are productive for bi- (or larger) cyclization and lead to products. Similarities and differences between this scenario, including
描述了一系列
铂促进的多环化反应的动力学实验和量子
化学计算的结果。对这些结果的分析揭示了一种反应性模型,该模型超出了级联本身的能级,并结合了
铂-烯烃反应物配合物的预环合构象整体,其中只有一部分可用于双(或更大)环化和导致产品。强调了这种情况之间的异同,包括多环化的反应坐标,
铂和酶促进的多环化反应。