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Works (22)

Correction to “Tandem Isomerization/α,β-Site-Selective and Enantioselective Addition Reactions of N-(3-Butynoyl)-3,5-dimethylpyrazole Induced by Chiral π–Cu(II) Catalysts”

Journal of the American Chemical Society
2024-04-17 | Journal article
DOI: 10.1021/jacs.4c02832
Contributors: Weiwei Guo; Masahiro Hori; Yoshihiro Ogura; Kazuki Nishimura; Kosuke Oki; Tomoyuki Ikai; Eiji Yashima; Kazuaki Ishihara
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2,2′‐Tethered Binaphthyl‐Embedded One‐Handed Helical Ladder Polymers: Impact of the Tether Length on Helical Geometry and Chiroptical Property

Angewandte Chemie International Edition
2024-03-04 | Journal article
DOI: 10.1002/anie.202318712
Contributors: Tomoyuki Ikai; Namiki Mishima; Takehiro Matsumoto; Sayaka Miyoshi; Kosuke Oki; Eiji Yashima
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2,2′‐Tethered Binaphthyl‐Embedded One‐Handed Helical Ladder Polymers: Impact of the Tether Length on Helical Geometry and Chiroptical Property

Angewandte Chemie
2024-03-04 | Journal article
DOI: 10.1002/ange.202318712
Contributors: Tomoyuki Ikai; Namiki Mishima; Takehiro Matsumoto; Sayaka Miyoshi; Kosuke Oki; Eiji Yashima
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Optically-pure triptycene-based metallomacrocycles and homochiral self-sorting assisted by ladder formation

Chemical Communications
2023 | Journal article
DOI: 10.1039/D3CC02259E
Contributors: Kosuke Oki; Wei Zheng; Eiji Yashima; Tomoyuki Ikai
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Tandem Isomerization/α,β-Site-Selective and Enantioselective Addition Reactions of N-(3-Butynoyl)-3,5-dimethylpyrazole Induced by Chiral π–Cu(II) Catalysts

Journal of the American Chemical Society
2023-12-13 | Journal article
DOI: 10.1021/jacs.3c10820
Contributors: Weiwei Guo; Masahiro Hori; Yoshihiro Ogura; Kazuki Nishimura; Kosuke Oki; Tomoyuki Ikai; Eiji Yashima; Kazuaki Ishihara
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Secondary Structure Modulation of Triptycene-Based One-Handed Helical Ladder Polymers through π-Extension of Achiral Segments

Organic Materials
2023-11 | Journal article
DOI: 10.1055/a-2208-4389
Contributors: Tomoyuki Ikai; Atsuya Tanaka; Takumi Shiotani; Kosuke Oki; Eiji Yashima
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One‐Handed Helical Polyacetylenes Bearing Axially‐Chiral 2‐Arylpyridyl‐N‐Oxide Units for Efficient Chromatographic Enantioseparation of Chiral Aromatic and Aliphatic Alcohols

Angewandte Chemie International Edition
2023-08 | Journal article
DOI: 10.1002/anie.202306252
Contributors: Tomoyuki Ikai; Masaki Ito; Kosuke Oki; Nozomu Suzuki; Eiji Yashima
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One‐Handed Helical Polyacetylenes Bearing Axially‐Chiral 2‐Arylpyridyl‐N‐Oxide Units for Efficient Chromatographic Enantioseparation of Chiral Aromatic and Aliphatic Alcohols

Angewandte Chemie
2023-08 | Journal article
DOI: 10.1002/ange.202306252
Contributors: Tomoyuki Ikai; Masaki Ito; Kosuke Oki; Nozomu Suzuki; Eiji Yashima
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Crossref

Defect‐Free Synthesis of a Fully π‐Conjugated Helical Ladder Polymer and Resolution into a Pair of Enantiomeric Helical Ladders**

Angewandte Chemie
2023-05-08 | Journal article
DOI: 10.1002/ange.202301962
Contributors: Tomoyuki Ikai; Sayaka Miyoshi; Kosuke Oki; Ranajit Saha; Yuh Hijikata; Eiji Yashima
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Defect‐Free Synthesis of a Fully π‐Conjugated Helical Ladder Polymer and Resolution into a Pair of Enantiomeric Helical Ladders**

Angewandte Chemie International Edition
2023-05-08 | Journal article
DOI: 10.1002/anie.202301962
Contributors: Tomoyuki Ikai; Sayaka Miyoshi; Kosuke Oki; Ranajit Saha; Yuh Hijikata; Eiji Yashima
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Crossref

Remote Control of One‐Handed Helicity in Polyacetylenes through Flexible Spacers in Water: Impact of the Spacer Length

Angewandte Chemie
2023-05-08 | Journal article
DOI: 10.1002/ange.202301127
Contributors: Tomoyuki Ikai; Koshi Nakamura; Kosuke Mizumoto; Kosuke Oki; Eiji Yashima
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Remote Control of One‐Handed Helicity in Polyacetylenes through Flexible Spacers in Water: Impact of the Spacer Length

Angewandte Chemie International Edition
2023-05-08 | Journal article
DOI: 10.1002/anie.202301127
Contributors: Tomoyuki Ikai; Koshi Nakamura; Kosuke Mizumoto; Kosuke Oki; Eiji Yashima
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Stereospecific Synthesis of Enantiopure [6]Helicene Containing a Seven‐Membered Ring and [7]Helicene by Acid‐Promoted Stepwise Alkyne Annulations of Doubly Axial‐Chiral Precursors**

Angewandte Chemie International Edition
2023-04-24 | Journal article
DOI: 10.1002/anie.202301836
Contributors: Tomoyuki Ikai; Kosuke Oki; Shoya Yamakawa; Eiji Yashima
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Crossref

Stereospecific Synthesis of Enantiopure [6]Helicene Containing a Seven‐Membered Ring and [7]Helicene by Acid‐Promoted Stepwise Alkyne Annulations of Doubly Axial‐Chiral Precursors**

Angewandte Chemie
2023-04-24 | Journal article
DOI: 10.1002/ange.202301836
Contributors: Tomoyuki Ikai; Kosuke Oki; Shoya Yamakawa; Eiji Yashima
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Crossref

One‐Handed Helical Tubular Ladder Polymers for Chromatographic Enantioseparation**

Angewandte Chemie International Edition
2023-03-06 | Journal article
DOI: 10.1002/anie.202218297
Contributors: Wei Zheng; Kosuke Oki; Ranajit Saha; Yuh Hijikata; Eiji Yashima; Tomoyuki Ikai
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Crossref

One‐Handed Helical Tubular Ladder Polymers for Chromatographic Enantioseparation**

Angewandte Chemie
2023-03-06 | Journal article
DOI: 10.1002/ange.202218297
Contributors: Wei Zheng; Kosuke Oki; Ranajit Saha; Yuh Hijikata; Eiji Yashima; Tomoyuki Ikai
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Crossref

Synthesis of a π-extended azacoronene composed of naphthalene and acenaphtho[1,2-<i>c</i>]pyrrole toward a chiral curved π structure

Journal of Porphyrins and Phthalocyanines
2022 | Journal article
DOI: 10.1142/s1088424622500869
Part of ISSN: 1088-4246
Contributors: Masayoshi Takase; Takayuki Matsunaga; Kosuke Oki; Shigeki Mori; Hidemitsu Uno
Source: Self-asserted source
Kosuke Oki via Crossref Metadata Search

Author response for "Consecutively fused single‐, double‐, and triple‐expanded helicenes"

2022-01-11 | Other
DOI: 10.1002/ntls.20210047/v2/response1
Contributors: Wei Zheng; Tomoyuki Ikai; Kosuke Oki; Eiji Yashima
Source: Self-asserted source
Kosuke Oki via Crossref Metadata Search

Synthesis and Characterization of Peralkylated Pyrrole-Fused Azacoronene

The Journal of Organic Chemistry
2021-02 | Journal article
DOI: 10.1021/acs.joc.0c03042
Part of ISSN: 0022-3263
Contributors: Kosuke Oki; Masayoshi Takase; Nagao Kobayashi; Hidemitsu Uno
Source: Self-asserted source
Kosuke Oki via Crossref Metadata Search

Synthesis and Isolation of Antiaromatic Expanded Azacoronene via Intramolecular Vilsmeier-Type Reaction

Journal of the American Chemical Society
2019-10-02 | Journal article
DOI: 10.1021/jacs.9b09260
Part of ISSN: 0002-7863
Contributors: Kosuke Oki; Masayoshi Takase; Shigeki Mori; Hidemitsu Uno
Source: Self-asserted source
Kosuke Oki via Crossref Metadata Search

Synthesis, Structures, and Properties of Core-Expanded Azacoronene Analogue: A Twisted π-System with Two N-Doped Heptagons

Journal of the American Chemical Society
2018-08-01 | Journal article
DOI: 10.1021/jacs.8b06079
Part of ISSN: 0002-7863
Contributors: Kosuke Oki; Masayoshi Takase; Shigeki Mori; Akitoshi Shiotari; Yoshiaki Sugimoto; Keishi Ohara; Tetsuo Okujima; Hidemitsu Uno
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Kosuke Oki via Crossref Metadata Search

One-pot Synthesis of a Rice-ball-shaped Cyclophane with <i>syn</i>-Diethanoanthracene-fused Dipyrrole and Hexafluorobenzene

Chemistry Letters
2017-02-05 | Journal article
DOI: 10.1246/cl.161026
Part of ISSN: 0366-7022
Contributors: Kosuke Oki; Kazunari Tagawa; Shigeki Mori; Masayoshi Takase; Tetsuo Okujima; Hidemitsu Uno
Source: Self-asserted source
Kosuke Oki via Crossref Metadata Search
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