Synthesis of chiral carbon nanobelt

手性碳纳米带的合成

• 批准号: 17K05773
• 负责人: 孫 哲
• 金额: $ 3.08万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2017
• 资助国家: 日本
• 起止时间: 2017-04-01 至 2019-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17K05773/
• 关键词: carbon nanotube; chirality; macrocycle; host guest complex

This project aims at the synthesis of unprecedented chiral carbon nanobelt molecule that could be the next generation nanocarbon material, and subsequently investigate their host guest chemistry with fullerenes, templated carbon nanotube growth and other material related applications. The first stage of the project is to synthesize the target molecule. So far, the synthesis was conducted smoothly and the key diborylated intermediate was obtained by a five-step transformation in good yield from commercially available compound. The key transformation, a platinum mediated macrocylization reaction, is currently being examined. To overcome the steric hindrance of the ortho-substituted substrate, we are now screening reaction conditions with different solvent, base and ligand. Also the reaction temperature and time will be optimized. At the same time, using an alternative synthetic approach, a new carbon nanobelt molecule has been successfully synthesized and the structure was unambiguously confirmed by NMR, MALDI-TOF MS and X-ray single crystal analysis. With the new synthetic strategy, we successfully prepared a series of carbon nanobelt molecules and studied their physical properties.

该项目旨在合成前所未有的手性碳纳米带分子，这可能是下一代纳米碳材料，并随后研究其与富勒烯的主客体化学，模板碳纳米管生长和其他材料相关的应用。该项目的第一阶段是合成目标分子。到目前为止，该合成反应进行顺利，并通过五步转化以良好的产率从市售化合物中获得了关键的二硼基化中间体。关键的转化，铂介导的大环化反应，目前正在研究中。为了克服邻位取代底物的空间位阻，我们正在用不同的溶剂、碱和配体筛选反应条件。此外，还将优化反应温度和时间。同时，采用另一种合成方法，成功合成了一种新的碳纳米带分子，其结构通过NMR、MALDI-TOF MS和X射线单晶分析得到了明确的证实。采用新的合成策略，我们成功地制备了一系列碳纳米带分子，并对其物理性质进行了研究。

项目成果

Synthesis of 9,10-Diarylanthracenes via Mg(TMP)2_2LiCl-Mediated Benzyne Generation/[4+2] Cycloaddition and Deoxygenation of 9,10-Epoxyanthracene Intermediates

Mg(TMP)2_2LiCl介导的苯炔生成合成9,10-二芳基蒽/[4 2] 9,10-环氧蒽中间体的环加成和脱氧

• DOI: 10.1055/s-0036-1591510
• 发表时间: 2018
• 期刊: Synlett
• 影响因子: 2
• 作者: Miyamoto;N.; Nakazawa;Y.; Nakamura;T.; Okano;K.; Sato;S.; Sun;Z.; Isobe;H.; Tokuyama;H.
• 通讯作者: H.

An Obtuse-angled Corner Unit for Fluctuating Carbon Nanohoops

• DOI: 10.1002/asia.201601614
• 发表时间: 2017-01-01
• 期刊: CHEMISTRY-AN ASIAN JOURNAL
• 影响因子: 4.1
• 作者: Sun, Zhe;Miyamoto, Naoya;Isobe, Hiroyuki
• 通讯作者: Isobe, Hiroyuki