Regiodivergent addition reactions provide straightforward and atom-economic approaches to access different regioisomers. However, the regio-chemistry control to access all the possible results is still challenging especially for the reaction involving multiple addition steps. Herein, we reported regio-controllable cobalt-catalyzed sequential hydrosilylation/hydroboration of arylacetylenes, delivering all the possible regio-outcomes with high regioselectivities (up to >20/1 rr for all the cases). Each regioisomer of value-added silylboronates could be efficiently and regioselectively obtained from the same materials. The adjustment of the ligands of cobalt catalysts combined with dual catalysis relay strategy is the key to achieve regio-chemistry control. This regio-controllable research might inspire the exploration of the diversity-oriented synthesis that involves multiple additions and provide full sets of regioisomers of other synthetic useful molecules.

中文翻译：

---

区域可控钴催化芳基乙炔的顺序氢化硅烷化/硼氢化

区域发散加成反应提供了直接且原子经济的方法来获得不同的区域异构体。然而，获得所有可能结果的区域化学控制仍然具有挑战性，尤其是对于涉及多个加成步骤的反应。在此，我们报告了区域可控的钴催化的芳基乙炔的顺序氢化硅烷化/硼氢化，以高区域选择性（所有情况高达 >20/1 rr）提供所有可能的区域结果。高附加值甲硅烷基硼酸酯的每种区域异构体都可以从相同的材料中有效且区域选择性地获得。钴催化剂配体的调整结合双催化接力策略是实现区域化学控制的关键。