Publications by authors named "Tsugio Kitamura"

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Molecular Iodine as a Catalyst for Alkene Difluorination.
Tsugio Kitamura, Juzo Oyamada, Masahiro Higashi, Yosuke Kishikawa

J Org Chem· April 2024

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Iodine-Mediated Fluorination of Alkenes with an HF Reagent: Regioselective Synthesis of 2-Fluoroalkyl Iodides.
Tsugio Kitamura, Ryuichi Komoto, Juzo Oyamada, Masahiro Higashi, Yosuke Kishikawa

J Org Chem· December 2021

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Kitamura Electrophilic Fluorination Using HF as a Source of Fluorine.
Jianlin Han, Greg Butler, Hiroki Moriwaki, Hiroyuki Konno, Vadim A Soloshonok, Tsugio Kitamura

Molecules· April 2020

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Synthesis of [1]Benzothieno[3,2- b][1]benzothiophene Derivatives via Successive Iodocyclization/Photocyclization of Alkynes.
Tsugio Kitamura, Kazuhiro Morita, Haruka Nakamori, Juzo Oyamada

J Org Chem· April 2019

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Difluorination of Functionalized Aromatic Olefins Using Hypervalent Iodine/HF Reagents.
Tsugio Kitamura, Kento Yoshida, Shota Mizuno, Azusa Miyake, Juzo Oyamada

J Org Chem· December 2018

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Synthesis of β-Fluorovinyliodonium Salts by the Reaction of Alkynes with Hypervalent Iodine/HF Reagents.
Tsugio Kitamura, Shota Mizuno, Kensuke Muta, Juzo Oyamada

J Org Chem· March 2018

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Hypervalent Iodine/HF Reagents for the Synthesis of 3-Fluoropyrrolidines.
Tsugio Kitamura, Azusa Miyake, Kensuke Muta, And Juzo Oyamada

J Org Chem· November 2017

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Hypervalent Iodine/Triflate Hybrid Benzdiyne Equivalents: Access to Controlled Synthesis of Polycyclic Aromatic Compounds.
Tsugio Kitamura, Keisuke Gondo, Juzo Oyamada

J Am Chem Soc· June 2017

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Hypervalent Iodine-Mediated Fluorination of Styrene Derivatives: Stoichiometric and Catalytic Transformation to 2,2-Difluoroethylarenes.
Tsugio Kitamura, Kensuke Muta, Juzo Oyamada

J Org Chem· November 2015

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Palladium-Catalyzed Desilylative Acyloxylation of Silicon-Carbon Bonds on (Trimethylsilyl)arenes: Synthesis of Phenol Derivatives from Trimethylsilylarenes.
Keisuke Gondo, Juzo Oyamada, Tsugio Kitamura

Org Lett· October 2015

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Hypervalent iodine-promoted α-fluorination of acetophenone derivatives with a triethylamine·HF complex.
Tsugio Kitamura, Kensuke Muta, Kazutaka Muta

J Org Chem· June 2014

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Synthesis of 1,2-bis(trimethylsilyl)benzene derivatives from 1,2-dichlorobenzenes using a hybrid metal Mg/CuCl in the presence of LiCl in 1,3-dimethyl-2-imidazolidinone.
Tsugio Kitamura, Keisuke Gondo, Toshimasa Katagiri

J Org Chem· April 2013

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Reaction of iodonium ylides of 1,3-dicarbonyl compounds with HF reagents.
Keisuke Gondo, Tsugio Kitamura

Molecules· May 2012

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Palladium-catalyzed intramolecular hydroarylation of 4-benzofuranyl alkynoates. Approach to angelicin derivatives.
Tsugio Kitamura, Kensuke Otsubo

J Org Chem· March 2012

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Alkynylation of benzotriazole with silylethynyliodonium triflates. Regioselective synthesis of 2-ethynyl-2H-benzotriazole derivatives.
Tsugio Kitamura, Mohammad Hasan Morshed, Satoru Tsukada, Yuki Miyazaki, Naomi Iguchi

J Org Chem· October 2011

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A practical and convenient fluorination of 1,3-dicarbonyl compounds using aqueous HF in the presence of iodosylbenzene.
Tsugio Kitamura, Satoshi Kuriki, Mohammad Hasan Morshed, Yuji Hori

Org Lett· May 2011

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Iodoarylation of arylalkynes with molecular iodine in the presence of hypervalent iodine reagents.
Md Ataur Rahman, Tsugio Kitamura

Molecules· August 2009

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Drastic effect of bidentate phosphine ligands on Pd-catalyzed hydroarylation of ethyl propiolate: a simple route to arylbutadienes.
Juzo Oyamada, Tsugio Kitamura

Chem Commun (Camb)· October 2008

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Practical and convenient synthesis of coumarins from phenols and propiolic acid esters.
Tsugio Kitamura, Juzo Oyamada, Toshiyuki Tsubota

Nat Protoc· June 2007

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Reaction of arenes with iodine in the presence of potassium peroxodisulfate in trifluoroacetic acid. Direct and simple synthesis of diaryliodonium triflates.
Md Delwar Hossain, Yasuyuki Ikegami, Tsugio Kitamura

J Org Chem· December 2006

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Unexpected, drastic effect of triflic acid on oxidative diacetoxylation of iodoarenes by sodium perborate. A facile and efficient one-pot synthesis of (diacetoxyiodo)arenes.
Md Delwar Hossain, Tsugio Kitamura

J Org Chem· August 2005

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Novel [4 + 2]-cycloaddition of 1-phenyl-1-benzothiophenium salts with dienes. Experimental evidence for a lack of aromaticity in the thiophene ring.
Tsugio Kitamura, Bian-Xiang Zhang, Yuzo Fujiwara

J Org Chem· February 2003

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Single-pot conversion of methane into acetic acid in the absence of CO and with vanadium catalysts such as amavadine.
Patrícia M Reis, José A L Silva, António F Palavra, João J R Fraústo da Silva, Tsugio Kitamura

Angew Chem Int Ed Engl· February 2003

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A New Hypervalent Iodine Precursor of a Highly Strained Cyclic Alkyne. Generation and Trapping Reactions of Bicyclo[2.2.1]hept-2-en-5-yne.
Tsugio Kitamura, Masashi Kotani, Takanobu Yokoyama, Yuzo Fujiwara, Kenzi Hori

J Org Chem· February 1999

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