Following a strong regain of interest over the past 20 years in the chemistry of allenes, this “forgotten” family of unsaturated molecules is undergoing a renaissance. In this context, the metal-catalyzed hydrofunctionalization of allenes is nowadays one of the most studied transformations. The latter is of great interest because it opens a way to produce selectively functionalized allylic structures. These motifs are important in synthesis, particularly for the formation of asymmetric centers. Hydrofunctionalization of allenes is also a totally atom economical strategy, avoiding generation of any waste, to produce allylic functionalized structures. Compared to the main pathway to obtain the latter (aka Tsuji-Trost allylic substitution), metal-catalyzed hydrofunctionalization does not require the prefunctionalization of starting material with a leaving group. This review presents a state of the art exploration of all existing transition metal-catalyzed methods allowing the selective intermolecular hydrofunctionalization of allenes with N–H, C–H, and O–H nucleophiles or electrophiles.

中文翻译：

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金属催化的丙二烯分子间氢官能化：通过C–N，CC–和C–O键的选择性形成，易于获得烯丙基结构

在过去的20年中，人们对艾伦的化学产生了浓厚的兴趣，此“被遗忘”的不饱和分子家族正在复兴。在这种情况下，如今，金属催化的丙二烯加氢官能化已成为研究最多的转化之一。后者引起了极大的兴趣，因为它为生产选择性功能化的烯丙基结构开辟了道路。这些基序在合成中很重要，特别是对于不对称中心的形成而言。丙二烯的加氢官能​​化也是完全原子经济的策略，避免产生任何废物，以产生烯丙基官能化的结构。与获得后者的主要途径（也称为Tsuji-Trost烯丙基取代）相比，金属催化的加氢官能​​化不需要具有离去基团的原料的预官能化。这篇综述提出了对所有现有的过渡金属催化方法的最新研究进展，这些方法允许用NH，CH和OH亲核试剂或亲电试剂选择性地进行烯丙基的分子间加氢官能化。