ARII Hidekazu



Faculty of Education Science education

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Degree 【 display / non-display

  • 博士(工学) ( 2003.3   名古屋工業大学 )

Research Areas 【 display / non-display

  • Nanotechnology/Materials / Inorganic/coordination chemistry


Papers 【 display / non-display

  • Dehydrogenative Annulation of Silylated 1H-Indoles with Alkynes via Silyl Migration Reviewed

    Arii H., Nakane D., Nakao K., Masuda H., Kawashima T.

    Organic Letters   25 ( 29 )   5416 - 5420   2023.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Organic Letters  

    We investigated the dehydrogenative annulation of silylated 1H-indole derivatives with alkynes to synthesize a silole-fused indole. The addition of the in situ generated silylium ion to alkynes was followed by the sila-Friedel-Crafts reaction via silyl migration, realizing regioselective dehydrogenative annulation controlled by the steric bulkiness of a base. The optical properties of the obtained siloloindoles indicated fluorescence of which the intensity depends on the location of the fused silole.

    DOI: 10.1021/acs.orglett.3c01650


  • Synthesis of Blue Flavylium Ion and Its Adsorption to Inorganic Materials for Utilization as a Repeatable pH Indicator

    Tomoko Tanaka, Chie Kuroki, Hidekazu Arii

    98   102 - 111   2022.3

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  


  • Preparation of Flavylium Ion Adsorbed on Zeolite as a Repeatable pH Indicator Reviewed

    Chie Kuroki, Hidekazu Arii

    8 ( 2 )   No5-1 - No5-7   2022.3

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  


  • Synthesis of 1-Silabenzo[ d, e]isochromanes via Electrophilic Aromatic Substitution of Aldehydes Activated by Silylium Ion Reviewed

    Arii H., Nakao K., Masuda H., Kawashima T.

    ACS Omega   7 ( 6 )   5166 - 5175   2022.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:ACS Omega  

    A strong Lewis acid silylium ion was utilized for dehydrogenative annulation between dialkyl(1-naphthyl)silanes 1 and aldehydes 2. Silane 1a was reacted with [Ph3C][B(C6F5)4] in the presence of 2,6-di-tert-butyl-4-methylpyridine and aldehydes 2 to afford the annulation product, 1-silabenzo[d,e]isochromanes 3, in moderate isolated yields. The annulation occurred only at the 8-position on the 1-naphthyl group. The silylium ion-promoted hydrosilylation proceeded competitively to afford silyl ethers 4 via the same intermediates, silylcarboxonium ions, in the dehydrogenative annulation. The ratio of 3 and 4 was affected by solvents and the electronic properties of aromatic aldehydes; for example, the use of less polar solvents and that of benzaldehydes with an electron-withdrawing group at the para-position predominantly yielded 3. This annulation reaction was applicable to aldehydes bearing a heteroaromatic group and aliphatic alkyl groups. Judging from these results, both the formation of silylcarboxonium ions by in situ-generated silylium ions and the electrophilic aromatic substitution are important for this annulation reaction.

    DOI: 10.1021/acsomega.1c06228



  • High-pressure syntheses and crystal structure analyses of a new low-density CaFe<inf>2</inf>O<inf>4</inf>-related and CaTi<inf>2</inf>O<inf>4</inf>-type MgAl<inf>2</inf>O<inf>4</inf>phases Reviewed

    Ishii T., Criniti G., Bykova E., Dubrovinsky L., Katsura T., Arii H., Kojitani H., Akaogi M.

    American Mineralogist   106 ( 7 )   1105 - 1112   2021.7

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:American Mineralogist  

    Three single crystals of CaTi2O4 (CT)-type, CaFe2O4 (CF)-type, and new low-density CaFe2O4 (LD-CF) related MgAl2O4 were synthesized at 27 GPa and 2500 °C and also CT-type MgAl2O4 at 45 GPa and 1727 °C using conventional and advanced multi-anvil technologies, respectively.The structures of CT-type and LD-CF related MgAl2O4 were analyzed by single-crystal X-ray diffraction. The lattice parameters of the CT-type phases synthesized at 27 and 45 GPa were a = 2.7903(4), b = 9.2132(10), and c = 9.3968(12) Å, and a = 2.7982(6), b = 9.2532(15), and c = 9.4461(16) Å, respectively, (Z = 4, space group: Cmcm) at ambient conditions. This phase has an AlO6 octahedral site and an MgO8 bicapped trigonal prism with two longer cation-oxygen bonds. The LD-CF related phase has a novel structure with orthorhombic symmetry (space group: Pnma), and lattice parameters of a = 9.207(2), b = 3.0118(6), and c = 9.739(2) Å (Z = 4). The structural framework comprises tunnel-shaped spaces constructed by edge- and corner-sharing of AlO6 and a 4+1 AlO5 trigonal bipyramid, in which MgO5 trigonal bipyramids are accommodated. The CF-type MgAl2O4 also has the same space group of Pnma but a slightly different atomic arrangement, with Mg and Al coordination numbers of 8 and 6, respectively. The LD-CF related phase has the lowest density of 3.50 g/cm3 among MgAl2O4 polymorphs, despite its high-pressure synthesis from the spinel-type phase (3.58 g/cm3), indicating that the LD-CF related phase formed via back-transformation from a high-pressure phase during the recovery. Combined with the previously determined phase relations, the phase transition between CF-and CT-type MgAl2O4 is expected to have a steep Clapeyron slope. Therefore, CT-type phase may be stable in basaltic- and continental-crust compositions at higher temperatures than the average mantle geotherm in the wide pressure range of the lower mantle. The LD-CF related phase could be found in shocked meteorites and used for estimating shock conditions.

    DOI: 10.2138/am-2021-7619



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MISC 【 display / non-display

  • ジヒドロジシランから誘導される多核¬白金–ケイ素錯体の合成 Invited

    有井 秀和, 持田 邦夫

    ケイ素化学協会誌   25   28 - 31   2010.11

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

Grant-in-Aid for Scientific Research 【 display / non-display

  • イオンの大きさや電荷を可視化する実験手法ならびに教材の開発

    Grant number:23K02792  2023.04 - 2026.03

    科学研究費補助金  基盤研究(C)(一般)


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    Authorship:Principal investigator  Grant type:Competitive