APPLICATION OF Β-DIIMIDE BIVALENT RARE EARTH BOROHYDRIDE COMPLEX FOR CATALYZING HYDROBORATION REACTI

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Provided is an application of a β-diimide bivalent rare earth borohydride complex for catalyzing a hydroboration reaction between a borane and a ketone. A β-diimide rare earth dichloride is reacted with NaBH4 in a tetrahydrofuran solution, and then undergoes in-situ Na/K chemical reduction to obtain a β-diimide bivalent rare earth borohydride complex : [2, 6-ipr2-(C6H3)-NC(Me)CHC(Me)N-(C6H3)-2, 6-ipr2]Ln-BH4∙2THF. The β-diimide bivalent rare earth borohydride complex can provide, under mild conditions, a highly active catalytic effect for a hydroboration reaction between a borane and a ketone. The invention provides a short reaction time, can be used under mild conditions, and has a simple and convenient post-treatment method.