The development of new chiral ligands has always been a significant research topic in the field of asymmetric synthesis. This paper reports a novel chiral NPN ligand (termed Xia‐Phos) derived from the modification of Ming‐Phos. This series of ligands possess advantages such as easy synthesis and convenient modification. Moreover, they exhibit excellent enantioselectivity in gold(I)‐catalyzed asymmetric [3+3] cycloaddition reactions.

中文翻译：

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新型手性NPN配体的构建及其在Gold（I）催化的不对称环加成反应中的应用


新型手性配体的开发一直是不对称合成领域的重要研究课题。本文报道了一种源自 Ming-Phos 修饰的新型手性 NPN 配体（称为 Xia-Phos）。该系列配体具有易合成、修饰方便等优点。此外，它们在金 （I） 催化的不对称 [3+3] 环加成反应中表现出优异的对映选择性。