Ota Kei, Kinjo Rei
Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore.
Angew Chem Int Ed Engl. 2020 Apr 16;59(16):6572-6575. doi: 10.1002/anie.201915790. Epub 2020 Feb 26.
A neutral 1,4-diaza-2,3,5,6-tetraborinine derivative (3) featuring a 6π ring system has been synthesized and structurally characterized. The prospective aromatic nature of 3 was assessed by single-crystal X-ray analysis, NMR, and UV/Vis absorption spectroscopy as well as computational studies. Furthermore, preliminary reactivity investigations showed that 3 does not only react with diphenyl acetylene but also readily captures CO in a [4+2] cycloaddition under ambient conditions.
一种具有6π环体系的中性1,4-二氮杂-2,3,5,6-四硼壬衍生物（3）已被合成并进行了结构表征。通过单晶X射线分析、核磁共振、紫外/可见吸收光谱以及计算研究对3的潜在芳香性进行了评估。此外，初步的反应性研究表明，3不仅能与二苯乙炔反应，而且在环境条件下能在[4+2]环加成反应中轻松捕获CO。
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