研究者詳細 - 福井　識人

論文 - 福井　識人

分割表示 68 件中 1 - 20 件目／全件表示 >>

Captodative Approach to Stable Nitrogen-Centered Radicals, Anions, and Cations Exhibiting Near-Infrared Electrochromism 査読有り

Keita Tajima, Christophe Bucher, Daiki Shimizu, Norihito Fukui, Hiroshi Shinokubo

JACS Au 2025年3月

Constructing Figure-Eight Structures by Inner-Bond Cleavage 招待有り査読有り

Norihito Fukui

Synlett 2025年1月

担当区分：筆頭著者,　最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Georg Thieme Verlag KG

Contemporary synthetic strategies in organic chemistry rely heavily on the stepwise formation of bonds between constituent fragments of the target compound, namely the bottom-up approach. However, this dependency poses significant challenges for the preparation of several classes of complex molecules, such as figure-eight molecules, despite their desirable functionality in advanced materials. Recently, we have developed an oxidative inner-bond-cleavage approach that enables a salable, catalytic, and enantioselective synthesis of figure-eight aromatic macrocycles. This Synpacts article summarizes the background, results, and outlook of our achievement. 1Introduction2Background3Our Contribution4Conclusion and Outlook

DOI： 10.1055/a-2529-5812

Synthesis and Properties of Donor–Acceptor‐Type Cyclobisbiphenylenecarbonyls 査読有り

Emiko Nishimoto, Tomoyuki Ikai, Hiroshi Shinokubo, Norihito Fukui

Chemistry – A European Journal 31 巻 ( 15 ) 2025年1月

担当区分：最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Wiley

Abstract

The scalable synthesis of figure‐eight π‐systems is challenging for the conventional bottom‐up approach. We have recently reported that the oxidative inner‐bond cleavage of commercially available dibenzo[g,p]chrysene efficiently furnishes a figure‐eight π‐acceptor, cyclobisbiphenylenecarbonyl (CBBC), in large quantity. Furthermore, its donor–acceptor‐type derivative with four N‐carbazolyl substituents at the meta‐positions of the carbonyl groups exhibited thermally activated delayed fluorescence (TADF) and circularly polarized luminescence (CPL) with a high |gCPL| value of 1.0×10−2. Herein, we synthesized nine donor–acceptor‐type CBBC derivatives by changing the donor substituents and their positions. Compared to previously reported carbazole‐substituted CBBC, tetramethylcarbazole‐ and 9,10‐dihydro‐9,9‐dimethylacridine‐substituted derivatives exhibited enhanced emission quantum yields and accelerated reverse intersystem crossing. The functionalization of the para‐positions of the carbonyl groups resulted in better tunability of emission colors rather than meta‐functionalization, whose color variation ranges from light blue to red. The incorporation of bulky substituents at the meta‐positions of the carbonyl groups induced the conformational change to a distorted ring structure. Investigation of the substituent effect on the chiroptical properties revealed that the introduction of less bulky donor units such as carbazole at the meta‐positions of the carbonyl groups is effective in achieving high |gCPL| values.

DOI： 10.1002/chem.202404194

Synthesis and electron-transporting properties of phenazine bisimides 査読有り

Keita Tajima, Taito Moribe, Kyohei Matsuo, Hiroko Yamada, Shu Seki, Seiya Yokokura, Toshihiro Shimada, Norihito Fukui, Hiroshi Shinokubo

Journal of Materials Chemistry C 13 巻頁： 655 - 662 2024年10月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Royal Society of Chemistry (RSC)

We have applied the dual incorporation of imide substituents and imine-type nitrogen atoms to anthracene, and thus synthesized phenazine bisimide. The structure–property relationship of this design strategy was systematically investigated.

DOI： 10.1039/d4tc03306j

Inner-Bond-Cleavage Approach to Figure-Eight Macrocycles from Planar Aromatic Hydrocarbons 査読有り

Reiji Yoshina, Junichiro Hirano, Emiko Nishimoto, Yuki Sakamoto, Keita Tajima, Shunsuke Minabe, Muhammet Uyanik, Kazuaki Ishihara, Tomoyuki Ikai, Eiji Yashima, Takuya Omine, Fumitaka Ishiwari, Akinori Saeki, Jinseok Kim, Juwon Oh, Dongho Kim, Guanting Liu, Takuma Yasuda, Hiroshi Shinokubo, Norihito Fukui

Journal of the American Chemical Society 146 巻 ( 43 ) 頁： 29383 - 29390 2024年9月

End-to-End Bent Perylene Bisimide Cyclophanes by Double Sulfur Extrusion 査読有り

Yuki Tanaka, Keita Tajima, Ryota Kusumoto, Yasuhiro Kobori, Norihito Fukui, Hiroshi Shinokubo

Journal of the American Chemical Society 146 巻 ( 23 ) 頁： 16332 - 16339 2024年5月

Synthesis of sterically congested double helicene by alkyne cycloisomerization 招待有り査読有り

Junichiro Hirano, Sayaka Miyoshi, Eiji Yashima, Tomoyuki Ikai, Hiroshi Shinokubo, Norihito Fukui

Chemical Communications 60 巻 ( 47 ) 頁： 6035 - 6038 2024年5月

担当区分：最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Royal Society of Chemistry (RSC)

Alkyne cycloisomerization of 2,7,10,15-tetra(ortho-alkynylphenyl)benzo[g,p]chrysene containing bulky 4-alkoxy-2,6-dimethylphenyl groups at the alkyne terminals selectively proceeded at the sterically crowded bay-region.

DOI： 10.1039/d4cc01573h

ナフタレンモノイミドをビルディングブロックとする含典型元素機能性π共役分子の開発招待有り

田島慶太, 福井識人, 忍久保洋

TCIメール 43 巻頁： 2 - 12 2024年3月

Excimer Formation Driven by Excited-State Structural Relaxation in a Covalent Aminonaphthalimide Dimer 査読有り

Rui Jing, Yang Li, Keita Tajima, Yan Wan, Norihito Fukui, Hiroshi Shinokubo, Zhuoran Kuang, Andong Xia

The Journal of Physical Chemistry Letters 15 巻 ( 5 ) 頁： 1469 - 1476 2024年1月

Effect of Internal Substituents on the Properties of Dibenzo[g,p]chrysene 査読有り

Yoshihiro Takeo, Junichiro Hirano, Norihito Fukui, Hiroshi Shinokubo

Organic Letters 2023年12月

Synthesis and properties of bay-functionalized 9,9′-bifluorenylidene derivatives 査読有り

Junichiro Hirano, Hiroshi Shinokubo, Norihito Fukui

Chemistry Letters 53 巻 ( 1 ) 2023年12月

担当区分：最終著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Oxford University Press (OUP)

Abstract

Here, we disclose the effect of substitution at the bay-region of 9,9′-bifluorenylidene on its optical and electrochemical properties. Bay-brominated 9,9′-bifluorenylidene was synthesized by the reductive dimerization of 4,5-dibromofluorenone with triethyl phosphite. The subsequent Suzuki–Miyaura cross-coupling afforded arylated derivatives. X-ray diffraction analysis revealed that the bulky bay-substituents twist the overall structure through the relay of the steric repulsion from the bay-region to the fjord-region. The π-extension at the bay-region with tolyl and 4-dimethylaminophenyl groups increases the electron-donating ability, while the introduction of bromo groups enhances the electron-accepting ability.

DOI： 10.1093/chemle/upad015

その他リンク： https://academic.oup.com/chemlett/article-pdf/53/1/upad015/56961460/upad015.pdf

Intrinsic Photostability in Dithiolonaphthalimide Achieved by Disulfide Bond-Induced Excited-State Quenching 査読有り

Zeming Wang, Rui Jing, Yang Li, Di Song, Yan Wan, Norihito Fukui, Hiroshi Shinokubo, Zhuoran Kuang, Andong Xia

The Journal of Physical Chemistry Letters 頁： 8485 - 8492 2023年9月

Near‐Infrared‐Responsive Hydrocarbons Designed by π‐Extension of Indeno[1,2,3,4‐pgra]perylene at the 1,2,12‐Positions 査読有り

Masaki Kato, Jinseok Kim, Juwon Oh, Daiki Shimizu, Norihito Fukui, Hiroshi Shinokubo

Chemistry – A European Journal 2023年1月

Dinaphthooxepine Bisimide Undergoes Oxygen Extrusion Reaction upon Electron Injection at Room Temperature 査読有り

Mai Odajima, Norihito Fukui, Hiroshi Shinokubo

Organic Letters 25 巻 ( 1 ) 頁： 282 - 287 2023年1月

Diazazethrene bisimide: a strongly electron-accepting π-system synthesized via the incorporation of both imide substituents and imine-type nitrogen atoms into zethrene 査読有り

Keita Tajima, Kyohei Matsuo, Hiroko Yamada, Norihito Fukui, Hiroshi Shinokubo

Chemical Science 14 巻 ( 3 ) 頁： 635 - 642 2023年

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Royal Society of Chemistry (RSC)

The development of highly electron-accepting π-systems is a fundamentally challenging issue despite their potential applications as various functional materials.

DOI： 10.1039/d2sc05992d

Effect of internal oxygen substituents on the properties of bowl-shaped aromatic hydrocarbons 査読有り

Yoshihiro Takeo, Junichiro Hirano, Daiki Shimizu, Norihito Fukui, Hiroshi Shinokubo

Organic Chemistry Frontiers 10 巻 ( 23 ) 頁： 5895 - 5901 2023年

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Royal Society of Chemistry (RSC)

In this study, we compare a bowl-shaped aromatic hydrocarbon with internal methoxy groups to related derivatives with hydrogen, methyl, and anisyl groups, evaluating their electron-accepting properties, electronic absorption spectra, and fullerene-binding behavior.

DOI： 10.1039/d3qo01661g

Gram‐Scale Diversity‐Oriented Synthesis of Dinaphthothiepine Bisimides as Soluble Precursors for Perylene Bisimides 査読有り

Yuki Tanaka, Kyohei Matsuo, Hiroko Yamada, Norihito Fukui, Hiroshi Shinokubo

European Journal of Organic Chemistry 2022 巻 ( 31 ) 2022年8月

Synthesis of Dibenzo[h,t]rubicene through Its Internally Dimethoxy-substituted Precursor 査読有り

Masaki Kato, Norihito Fukui, Hiroshi Shinokubo

Chemistry Letters 51 巻 ( 3 ) 頁： 288 - 291 2022年3月

Indeno[1,2,3,4‐ pqra ]Perylene: A Medium‐Sized Aromatic Hydrocarbon Exhibiting Full‐Range Visible‐Light Absorption 査読有り

Masaki Kato, Norihito Fukui, Hiroshi Shinokubo

Chemistry – A European Journal 28 巻 ( 2 ) 2022年1月

Symmetry-breaking charge separation in a nitrogen-bridged naphthalene monoimide dimer 査読有り

Xinmiao Niu, Keita Tajima, Jie Kong, Min Tao, Norihito Fukui, Zhuoran Kuang, Hiroshi Shinokubo, Andong Xia

Physical Chemistry Chemical Physics 24 巻 ( 22 ) 頁： 14007 - 14015 2022年

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Royal Society of Chemistry ({RSC})

The model molecule, bis-ANI (consisting of two naphthalimide moieties) was studied to better understand the process of charge separation. It is found that the central amino linker facilitates the formation of a charge separation state in bis-ANI.

DOI： 10.1039/d2cp00295g

　前のページ - 次のページ　

<福井 識人>

論文 - 福井 識人

<福井　識人>

論文 - 福井　識人