Nickel-Catalyzed Regioselective Hydrosilylation of Conjugated Dienes Xiaoyu Wu, Wei Liu, Liqun Yang, Yue Wang, Tianwen Liu, Yao Yuan, Yan Lu, * and Zhaoguo Zhang* Chin. J. Chem. 2023, 41, XXX—XXX. DOI: 10.1002/cjoc.202300XXX
Herein, we developed a Ni-catalyzed regiodivergent hydrosilylation of aromatic conjugated dienes with excellent regioselectivity by adjusting the temperature and ligands. Under low temperature (-30 oC), Ni/t-BuOK can efficiently catalyze the 3,4-anti-Markovnikov hydrosilylation to provide homoallylic silanes without eternal ligands; under room temperature (25 oC), Ni/t-BuOK/PPh3 can catalyze the 3,4-Markovnikov hydrosilylation to produce allylic silanes.