Takashi Okitsu

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Associate Professor

University of Toyama

Japan

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About

Takashi Okitsu is an Associate Professor at the University of Toyama, Japan. His research focuses on synthetic organic chemistry, particularly in the development of novel methodologies for the construction of complex molecular frameworks. Recent articles highlight his work on electrophilic cyclization, oxidative cleavage, and the characterization of bioactive compounds using solid-state NMR spectroscopy.

Recent Grants

Grant: Close

Development of unexplored molecular transformations based on dearomative Diels-Alder reactions

Open Date: 2021-04-01

Close Date: 2024-03-31

Grant: Close

Dearomative Diels-Alder Reaction of Arenes with Unactivated Alkynes

Open Date: 2018-04-01

Close Date: 2021-03-31

Grant: Close

Baldwin則への挑戦：環化様式を完全に制御する統一的方法論の開発

Open Date: 2015-04-01

Close Date: 2018-03-31

Grant: Close

Iodocyclization of ynamides

Open Date: 2012-04-01

Close Date: 2015-03-31

Grant: Close

Synthesis of heterocycles by iodocyclization and controlling of aromatization

Open Date: 2010-01-01

Close Date: 2011-12-31

Articles (15)

Year:

2025

Dearomative intramolecular Diels–Alder/sulfur extrusion reaction of thiophenes with alkynes successfully afforded fluoranthenes in moderate to excellent yields. The proximity of both reactive sites fixed at the peri ‐position of naphthalene would play an important role in the progress of this reaction. Tri( o ‐tolyl)phosphine effectively suppressed the side reactions as a sulfur scavenger.

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2024

Year:

2024

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2024

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2024

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2023

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2023

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2023

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2022

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2022

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2021

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2020

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2020

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2020

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2020

Collaborators (7)

Manabu Hatano

Professor

Kobe Pharmaceutical University

JAPAN

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Takayuki Yakura

JAPAN

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Takushi Kishida

Professor

JAPAN

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Ken Sakata

Professor

Toho University

JAPAN

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Izuru Kawamura

Associate Professor

Yokohama National University

JAPAN

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Kengo Kasama

Assistant Professor

University of Toyama

JAPAN

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Akimori Wada

Professor

Kobe Pharmaceutical University

JAPAN

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Takashi Okitsu

Research Interests

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About

Recent Grants

Articles (15)

Construction of the Spiro[5.5]undecane Framework through Dearomative ipso-Iodocyclization of 5-(4-(1-Ethoxyethoxy)phenyl)-1-alkynes

Dearomative Intramolecular Diels–Alder/Sulfur Extrusion Reaction of Thiophenes with Alkynes Using <i>peri</i>‐Substituted Naphthalene as a Tether

8-Iodoisoquinolinone, a Conformationally Rigid Highly Reactive 2-Iodobenzamide Catalyst for the Oxidation of Alcohols by Hypervalent Iodine

Efficient and Environmentally Benign Oxidative Cleavage of Pyrrolidine-2-methanols to γ-Lactams Using 2-Iodobenzamide as a Catalyst and Oxone

Boron Trifluoride-Mediated Domino Dehydration/Electrophilic Cyclization of Silylalkynols Leading to 2,3-Fused Tricyclic Benzofulvenes

Solid-state NMR for the characterization of retinal chromophore and Schiff base in TAT rhodopsin embedded in membranes under weakly acidic conditions

Cationic Iodine（I）-Mediated Electrophilic Cyclization of Alkynes

Characterization of retinal chromophore and protonated Schiff base in Thermoplasmatales archaeon heliorhodopsin using solid-state NMR spectroscopy

Photoreaction Pathways of Bacteriorhodopsin and Its D96N Mutant as Revealed by in Situ Photoirradiation Solid-State NMR

Rapid Synthesis of Polycyclic Aromatic Compounds by Iodocyclization of Ynamides

Concise preparation and biological evaluations of 9-CIS-retinoic acid analogues having an aromatic ring

A dearomative: Ipso -iodocyclization/desymmetrization sequence leading to optically active tricyclic piperazine scaffolds

Synthesis of One Double Bond-Inserted Retinal Analogs and Their Binding Experiments with Opsins: Preparation of Novel Red-Shifted Channelrhodopsin Variants

Visual adaptation of opsin genes to the aquatic environment in sea snakes

Ynamides enabled 6-, 7-, and 8-endo-dig iodocyclization of ethoxyethyl ethers: rapid construction of medium-sized oxacycles at room temperature

Collaborators (7)

Manabu Hatano

Takayuki Yakura

Takushi Kishida

Ken Sakata

Izuru Kawamura

Kengo Kasama

Akimori Wada

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