The addition of X₃Si–H or X₂B–H (X = H, OR or R) across a C–C multiple bond is a well-established method for incorporating silane or borane groups, respectively, into hydrocarbon feedstocks. These hydrofunctionalization reactions are often mediated by transition metal catalysts, with precious metals being the most commonly used owing to the ability to optimize reaction scope, rates and selectivities. For example, platinum catalysts effect the hydrosilylation of alkenes with anti-Markovnikov selectivity and constitute an enabling technology in the multibillion dollar silicones industry. Increased emphasis on sustainable catalytic methods and on more economic processes has shifted the focus to catalysis with more earth-abundant transition metals, such as iron, cobalt and nickel. This Review describes the use of first-row transition metal complexes in catalytic alkene hydrosilylation and hydroboration. Defining advances in the field are covered, noting the chemistry that is unique to first-row transition metals and the design features that enable them to exhibit precious-metal-like reactivity. Other important features, such as catalyst activity and stability, are covered, as are practical considerations, such as cost and safety.

X ₃ Si–H或X ₂的加法跨C–C多键的B–H（X = H，OR或R）是一种公认​​的方法，用于将硅烷或硼烷基团分别掺入烃类原料中。这些加氢官能化反应通常由过渡金属催化剂介导，由于能够优化反应范围，速率和选择性，贵金属是​​最常用的。例如，铂催化剂以反马尔科夫尼科夫选择性实现烯烃的氢化硅烷化，并构成了数十亿美元的有机硅工业中的使能技术。对可持续的催化方法和更经济的过程的日益重视已将重心转移到了更多的地球上富集的过渡金属（如铁，钴和镍）的催化上。这篇综述描述了第一行过渡金属络合物在催化烯烃加氢硅烷化和硼氢化反应中的用途。涵盖了该领域的定义性进展，并指出了第一行过渡金属所独有的化学性质以及使它们表现出类似贵金属反应性的设计特征。涵盖了其他重要特征，例如催化剂活性和稳定性，以及实际考虑因素，例如成本和安全性。