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
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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. |