Direct and Base-Catalyzed Diboration of Alkynes Using the Unsymmetrical Diborane(4), pinB-BMes2
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- 作者：Chiemi Kojima ; Ka-Ho Lee ; Zhenyang Lin ; Makoto Yamashita
- 刊名：Journal of the American Chemical Society
- 出版年：2016
- 出版时间：May 25, 2016
- 年：2016
- 卷：138
- 期：20
- 页码：6662-6669
- 全文大小：694K
- 年卷期：0
- ISSN：1520-5126
文摘
In the absence of transition metal catalysts, the unsymmetrical diborane(4), pinB-BMes2, reacted with alkynes to afford diborylalkenes. The isomer ratio of the products could be controlled via temperature, solvent, and additive(s). A reaction mechanism was proposed on the basis of two isolated intermediates, and this reaction could furthermore be applied to synthesize a luminescent molecule.