C(sp3)–H Selective Benzylic Borylation by In Situ Reduced Ultrasmall Ni Species on CeO2,ACS Catalysis

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C(sp3)–H Selective Benzylic Borylation by In Situ Reduced Ultrasmall Ni Species on CeO2
ACS Catalysis ( IF 11.3 ) Pub Date : 2021-02-03 , DOI: 10.1021/acscatal.1c00185
Daichi Yoshii ₁ , Takafumi Yatabe ₁ , Tomohiro Yabe ₁ , Kazuya Yamaguchi ₁

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Herein, we report that highly dispersed Ni hydroxide species supported on CeO₂ act as an efficient heterogeneous catalyst for the selective borylation of benzylic C(sp³)–H bonds of alkylarenes including secondary derivatives, using pinacolborane as the borylating agent. A thorough physicochemical analysis reveals that in situ reduced ultrasmall Ni species on CeO₂ during the reaction are the actual active species responsible for the borylation.

中文翻译：

C（sp ³）–H在CeO ₂上原位还原超小型Ni物种的选择性苄基硼化反应

在本文中，我们报道了使用频哪醇硼烷作为硼化剂，负载在CeO ₂上的高度分散的Ni氢氧化物可作为一种有效的非均相催化剂，用于烷基芳烃的苄基C（sp ³）-H键的选择性硼化，包括二级衍生物。彻底的理化分析表明，反应过程中CeO ₂上原位还原的超小Ni物种是负责硼化反应的实际活性物种。

更新日期：2021-02-19

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