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

Kosuke Oki, Masayoshi Takase, Shigeki Mori, +5

Journal of the American Chemical Society

Core-expanded Azacoronene AnalogueMaterials ScienceTwisted StructureOrganic Material ChemistryEngineering +10

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

Kosuke Oki, Masayoshi Takase, Shigeki Mori, +1

Journal of the American Chemical Society

Consecutively fused single‐, double‐, and triple‐expanded helicenes

Wei Zheng, Tomoyuki Ikai, Kosuke Oki, +1

Natural Sciences

Enantioselective SynthesisHeterocyclicNatural SciencesDiversity-oriented SynthesisMolecular Biology +8

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

Wei Zheng, Kosuke Oki, Ranajit Saha, +3

Angewandte Chemie International Edition

Macromolecular ChemistryEngineeringResponsive PolymersChemistryMolecular Polymer +15

Control of One-Handed Helicity in Polyacetylenes: Impact of an Extremely Small Amount of Chiral Substituents

Tomoyuki Ikai, Yuki Morita, Tsuyoshi Majima, +9

Journal of the American Chemical Society

Synthesis and Characterization of Peralkylated Pyrrole-Fused Azacoronene

Kosuke Oki, Masayoshi Takase, Nagao Kobayashi, +1

The Journal of Organic Chemistry

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**

Tomoyuki Ikai, Kosuke Oki, Shoya Yamakawa, +1

Angewandte Chemie International Edition

Opposite HelicityEnantioselective SynthesisEngineeringStereospecific SynthesisHeterocyclic +11

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

Tomoyuki Ikai, Sayaka Miyoshi, Kosuke Oki, +3

Angewandte Chemie International Edition

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

Tomoyuki Ikai, Koshi Nakamura, Kosuke Mizumoto, +2

Angewandte Chemie International Edition

One‐Handed Helical Polyacetylenes Bearing Axially‐Chiral 2‐Arylpyridyl‐<i>N</i>‐Oxide Units for Efficient Chromatographic Enantioseparation of Chiral Aromatic and Aliphatic Alcohols

Tomoyuki Ikai, Masaki Ito, Kosuke Oki, +2

Angewandte Chemie International Edition

EngineeringOrganic ChemistryChemistryChiral Aliphatic AlcoholsChiral Alcohol +14