钯催化的顺序B(3)-I/B(4)-H键活化用于合成3,4-苯并-碳硼烷。
Pd-Catalyzed sequential B(3)-I/B(4)-H bond activation for the synthesis of 3,4-benzo--carboranes.
作者信息
Ge Yixiu, Zhang Jie, Qiu Zaozao, Xie Zuowei
机构信息
Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Rd, Shanghai 200032, China.
Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China.
出版信息
Dalton Trans. 2021 Feb 9;50(5):1766-1773. doi: 10.1039/d0dt03740k.
A palladium-catalyzed sequential B(3)-I and B(4)-H bond activation has been achieved for the synthesis of 3,4-benzo-o-carboranes via a formal [2 + 2 + 2] cycloaddition of 3-I-o-carborane with 2 equiv. of arylalkynes. This represents a new protocol to construct o-carborane-fused cyclics in one process, in which the Pd fragment migrates formally from the B(3) to B(4) position of the cage.
通过3-I-邻碳硼烷与2当量芳基炔烃的形式上的[2 + 2 + 2]环加成反应，实现了钯催化的连续B(3)-I和B(4)-H键活化，用于合成3,4-苯并-邻碳硼烷。这代表了一种在一个过程中构建邻碳硼烷稠合环系的新方法，其中钯片段正式地从笼的B(3)位迁移到B(4)位。
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