The TfOH-catalyzed reaction of aryl-substituted donor-acceptor cyclopropane derivatives with ferrocene provided new functionalized ferrocene derivatives. This process exhibited a reasonable scope with respect to the cyclopropane component affording the corresponding alkylated ferrocene derivatives in useful yields. An alternative approach to these functionalized ferrocene derivatives involving arylation of a ferrocene-decorated donor-acceptor cyclopropane derivative is also disclosed. Both processes rely on a facile regioselective ring-opening of the donor-acceptor cyclopropane.

中文翻译：

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由供体-受体环丙烷合成功能化的二茂铁衍生物。

TfOH催化的芳基取代的供体-受体环丙烷衍生物与二茂铁的反应提供了新的功能化二茂铁衍生物。就提供有用产率的相应的烷基化二茂铁衍生物的环丙烷组分而言，该方法表现出合理的范围。还公开了这些功能化的二茂铁衍生物的另一种方法，该方法涉及二茂铁装饰的供体-受体环丙烷衍生物的芳基化。两种方法都依赖于供体-受体环丙烷的容易的区域选择性开环。