In the last two decades significant progress in enantioselective transformations employing chiral Cp ligands (Cp^x) has been made. The use of these ligands has typically been associated with Group 9 metals (Co, Rh, Ir), however the use of chiral Cp^x ligands has also been reported in combination with early transition‐metals and rare‐earth elements. This minireview presents an overview of the recent asymmetric reactions that have been successfully steered with chiral Cp^x metal complexes. The reactions are discussed according to the metal coordinated by the ligand.

中文翻译：

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手性环戊二烯（Cpx）金属配合物在不对称催化中的应用

在过去的二十年中，在使用手性Cp配体（Cp ^x）的对映选择性转化中取得了重大进展。这些配体的使用通常与第9组金属（Co，Rh，Ir）有关，但是也有报道称手性Cp ^x配体与早期的过渡金属和稀土元素结合使用。这份小型综述概述了最近使用手性Cp ^x金属配合物成功进行的不对称反应。根据配体配位的金属讨论反应。