Faculty Profiles - ARAMAKI Yoshitaka

Papers - ARAMAKI Yoshitaka

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p-Diarylboryl Halothiophenols as Multifunctional Catalysts via Photoactive Intramolecular Frustrated Lewis Pairs Reviewed International journal

Kikura, T; Taura, Y; Aramaki, Y; Ooi, T

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY Vol. 146 ( 29 ) page： 20425 - 20431 2024.7

Exploiting Single-Electron Transfer in Lewis Pairs for Catalytic Bond-Forming Reactions Reviewed

Yoshitaka Aramaki, Naoki Imaizumi, Mao Hotta, Jun Kumagai, Takashi Ooi

Chemical Science Vol. 11 ( 17 ) page： 4305 - 4311 2020.5

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

A single-electron transfer (SET) between tris(pentafluorophenyl)borane (B(C6F5)3) and N,N-dialkylanilines is reported, which is operative via the formation of an electron donor–acceptor (EDA) complex involving porbital interactions as a key intermediate under dark conditions or visible-light irradiation depending on the structure of the aniline derivatives. This inherent SET in the Lewis pairs initiates the generation of the corresponding α-aminoalkyl radicals and their additions to electron-deficient olefins, revealing the ability of B(C6F5)3 to act as an effective one-electron redox catalyst.

DOI： 10.1039/d0sc01159b

Web of Science

PubMed

If the Crown Fits: Sterically Demanding N-Heterocyclic Carbene Promotes the Formation of Au8Pt Nanoclusters Reviewed International coauthorship International journal

Dejesus, JF; Jacob, SI; Phung, QM; Mimura, K; Aramaki, Y; Ooi, T; Nambo, M; Crudden, CM

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY Vol. 146 ( 34 ) page： 23806 - 23813 2024.8

Excited-state tris(pentafluorophenyl)borane as a strong single-electron oxidant: Photophysical properties and catalysis Invited Reviewed

Yoshitaka Aramaki, Yuki Uchida, Ryo Ishikawa, Takashi Ooi

Journal of Photochemisty and Photobiology 2023.8

Excited-state tris(pentafluorophenyl)borane as a strong single-electron oxidant: Photophysical properties and catalysis Invited Reviewed

Yoshitaka Aramaki, Yuki Uchida, Ryo Ishikawa, Takashi Ooi

Journal of Photochemisty and Photobiology 2023.8

Synthesis and enantioseparation of chiral Au13 nanoclusters protected by bis-N-heterocyclic carbene ligands Reviewed International coauthorship

Yi, H; Osten, KM; Levchenko, TI; Veinot, AJ; Aramaki, Y; Ooi, T; Nambo, M; Crudden, CM

CHEMICAL SCIENCE Vol. 12 ( 31 ) page： 10436 - 10440 2021.8

Anion-π Catalyst

Aramaki, Y

JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN Vol. 75 ( 9 ) page： 73 - + 2017.9

4,7-Bis[3-(dimesitylboryl)thien-2-yl]benzothiadiazole: Solvato-, Thermo-, and Mechanochromism Based on the Reversible Formation of an Intramolecular B-N Bond Reviewed

H. Shimogawa, O. Yoshikawa, Y. Aramaki, M. Murata, A. Wakamiya, Y. Murata

Chemistry -A European Journal Vol. 23 ( 15 ) page： 3784 - 3791 2017.3

Language：English Publishing type：Research paper (scientific journal) Publisher：WILEY-V C H VERLAG GMBH

4,7-Bis-[3-(dimesitylboryl)thien-2-yl]benzothiadiazole (1) and monoborylated derivative 2 were synthesized and their chromic behavior was investigated. Photophysical measurements, single-crystal XRD analysis, and theoretical calculations revealed that an intramolecular B-N coordination bond formed reversibly. The equilibrium of this reversible bond formation depends on the solid-state structure, solvent, temperature, and mechanical forces, and leads to significant changes in the electronic structure and chromic behavior of these molecules. The responsiveness toward external stimuli, resulting in the reversible formation of open and closed forms of this system, is achieved through weak intramolecular B-N coordination bonds induced by the steric bulk of the mesityl groups on the boron centers.

DOI： 10.1002/chem.201606041

Web of Science

PubMed

Anion-π Catalyst

Aramaki Yoshitaka

Journal of Synthetic Organic Chemistry, Japan Vol. 75 ( 9 ) page： 965 - 966 2017

Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Society of Synthetic Organic Chemistry, Japan

Organocatalyst realizes high yield and high selectivity by using non-covalent bond interactions. In these interactions, anion-π interaction which works between π-acidic surfaces and anions has been conducted to organocatalyst recently since a first report by Matile in 2013. Here, the recent development of anion-π catalysis is introduced from the viewpoints of stabilization mechanism of anionic transition states.

DOI： 10.5059/yukigoseikyokaishi.75.965

CiNii Research

Near-Infrared Emissive Donor-Acceptor-Type Molecules Containing Thiazole-Fused Benzothiadiazole as an Electron-Acceptor Moiety Reviewed

Motoi Satou, Tomoya Nakamura, Yoshitaka Aramaki, Shuhei Okazaki, Michihisa Murata, Atsushi Wakamiya, Yasujiro Murata

Chem. Lett. Vol. 45 ( 8 ) page： 892-894 2016.6

Assessing the Brønsted Basicity of Diaminoboryl Anions: Reactivity toward Methylated Benzenes and Dihydrogen Reviewed

Nicole Dettenrieder, Yoshitaka Aramaki, Benjamin M. Wolf, Cäcilia Maichle-Mössmer, Xiaoxi Zhao, Makoto Yamashita, Kyoko Nozaki, Reiner Anwander

Angew. Chem. Int. Ed. Vol. 53 ( 24 ) page： 6259-6262 2014.6

Synthesis and Characterization of B-Heterocyclic π-Radical and Its Reactivity as a Boryl Radical Reviewed

Yoshitaka Aramaki, Hideki Omiya, Makoto Yamashita, Koji Nakabayashi, Shin-ichi Ohkoshi, Kyoko Nozaki

J. Am. Chem. Soc. Vol. 134 ( 49 ) page： 19989-19992 2012.12

Boryltrihydroborate: Synthesis, Structure, and Reactivity as a Reductant in Ionic, Organometallic, and Radical Reactions Reviewed

Kyoko Nozaki, Yoshitaka Aramaki, Makoto Yamashita, Shau-Hua Ueng, Max Malacria, Emmanuel Lacôte, Dennis P. Curran

J. Am. Chem. Soc. Vol. 132 ( 33 ) page： 11449-11451 2010.8

Reduction of base-stabilized difluoroboranes to induce rearrangement reactions Reviewed

Makoto Yamashita, Yoshitaka Aramaki, Kyoko Nozaki

New J. Chem. Vol. 34 ( 8 ) page： 1774-1782 2010.7

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Papers - ARAMAKI Yoshitaka