Publications by authors named "Masato Ohashi"

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Isolation of Cationic η-Allenylnickel(II) Key Intermediate Complexes: Origins of Enantioselectivity and Regioselectivity in Nickel(0)-Catalyzed Asymmetric Propargylic Substitutions.
Yusuke Miyazaki, Kenichi Michigami, Masato Ohashi

J Am Chem Soc· March 2024

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-Heterocyclic Carbenes with Polyfluorinated Groups at the 4- and 5-Positions from [3 + 2] Cycloadditions between Formamidinates and -1,2-Difluoroalkene Derivatives.
Masato Ohashi, Kota Ando, Shoichi Murakami, Kenichi Michigami, Sensuke Ogoshi

J Am Chem Soc· October 2023

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Synthesis of Fluoroalkyl Sulfides via Additive-Free Hydrothiolation and Sequential Functionalization Reactions.
Denise E Sunagawa, Naoyoshi Ishida, Hiroaki Iwamoto, Masato Ohashi, Corinne Fruit

J Org Chem· April 2021

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Cleavage of C(sp)-F Bonds in Trifluoromethylarenes Using a Bis(NHC)nickel(0) Complex.
Hiroaki Iwamoto, Hiroto Imiya, Masato Ohashi, Sensuke Ogoshi

J Am Chem Soc· November 2020

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Direct Transformation of Tetrafluoroethylene to Trifluorovinylzinc via sp C-F Bond Activation.
Kotaro Kikushima, Yuusuke Etou, Ryohei Kamura, Ippei Takeda, Hideki Ito, Masato Ohashi

Org Lett· October 2020

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Enantioselective Synthesis of Polycyclic γ-Lactams with Multiple Chiral Carbon Centers via Ni(0)-Catalyzed Asymmetric Carbonylative Cycloadditions without Stirring.
Keita Ashida, Yoichi Hoshimoto, Norimitsu Tohnai, David E Scott, Masato Ohashi

J Am Chem Soc· January 2020

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Ni(0)-Catalyzed Three-Component Coupling Reaction of Tetrafluoroethylene and N-Sulfonyl-Substituted Imines with Silanes via Aza-Nickelacycles.
Hiroshi Shirataki, Takafumi Ono, Masato Ohashi, Sensuke Ogoshi

Org Lett· February 2019

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Selective Catalytic Formation of Cross-Tetramers from Tetrafluoroethylene, Ethylene, Alkynes, and Aldehydes via Nickelacycles as Key Reaction Intermediates.
Takuya Kawashima, Masato Ohashi, Sensuke Ogoshi

J Am Chem Soc· December 2018

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Cu -Catalyzed Pentafluoroethylation of Aryl Iodides in the Presence of Tetrafluoroethylene and Cesium Fluoride: Determining the Route to the Key Pentafluoroethyl Cu Intermediate.
Masato Ohashi, Naoyoshi Ishida, Kota Ando, Yu Hashimoto, Anna Shigaki

Chemistry· July 2018

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Main-Group-Catalyzed Reductive Alkylation of Multiply Substituted Amines with Aldehydes Using H.
Yoichi Hoshimoto, Takuya Kinoshita, Sunit Hazra, Masato Ohashi, Sensuke Ogoshi

J Am Chem Soc· June 2018

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Fluorinated Vinylsilanes from the Copper-Catalyzed Defluorosilylation of Fluoroalkene Feedstocks.
Hironobu Sakaguchi, Masato Ohashi, Sensuke Ogoshi

Angew Chem Int Ed Engl· January 2018

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Transition-Metal-Free Catalytic Hydrodefluorination of Polyfluoroarenes by Concerted Nucleophilic Aromatic Substitution with a Hydrosilicate.
Kotaro Kikushima, Mary Grellier, Masato Ohashi, Sensuke Ogoshi

Angew Chem Int Ed Engl· December 2017

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N
Nickel-Catalyzed Formation of 1,3-Dienes via a Highly Selective Cross-Tetramerization of Tetrafluoroethylene, Styrenes, Alkynes, and Ethylene.
Takuya Kawashima, Masato Ohashi, Sensuke Ogoshi

J Am Chem Soc· December 2017

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Synthesis and Reactivity of Fluoroalkyl Copper Complexes by the Oxycupration of Tetrafluoroethylene.
Masato Ohashi, Takuya Adachi, Naoyoshi Ishida, Kotaro Kikushima, Sensuke Ogoshi

Angew Chem Int Ed Engl· September 2017

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C
Copper-Catalyzed Regioselective Monodefluoroborylation of Polyfluoroalkenes en Route to Diverse Fluoroalkenes.
Hironobu Sakaguchi, Yuta Uetake, Masato Ohashi, Takashi Niwa, Sensuke Ogoshi

J Am Chem Soc· September 2017

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C
Corrigendum: Strategic Utilization of Multifunctional Carbene for Direct Synthesis of Carboxylic-Phosphinic Mixed Anhydride from CO.
Yoichi Hoshimoto, Takahiro Asada, Sunit Hazra, Takuya Kinoshita, Panukorn Sombut, Masato Ohashi

Angew Chem Int Ed Engl· August 2017

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E
Efficient Synthesis of Polycyclic γ-Lactams by Catalytic Carbonylation of Ene-Imines via Nickelacycle Intermediates.
Yoichi Hoshimoto, Keita Ashida, Yukari Sasaoka, Ravindra Kumar, Ken Kamikawa, Masato Ohashi

Angew Chem Int Ed Engl· July 2017

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Two-step synthesis of chiral fused tricyclic scaffolds from phenols via desymmetrization on nickel.
Ravindra Kumar, Yoichi Hoshimoto, Eri Tamai, Masato Ohashi, Sensuke Ogoshi

Nat Commun· June 2017

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Kinetic and Theoretical Studies on Ni /N-Heterocyclic Carbene-Catalyzed Intramolecular Alkene Hydroacylation.
Yoichi Hoshimoto, Yukari Hayashi, Masato Ohashi, Sensuke Ogoshi

Chem Asian J· February 2017

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Nickel(0)-Mediated Transformation of Tetrafluoroethylene and Vinylarenes into Fluorinated Cyclobutyl Compounds.
Masato Ohashi, Yuta Ueda, Sensuke Ogoshi

Angew Chem Int Ed Engl· February 2017

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Strategic Utilization of Multifunctional Carbene for Direct Synthesis of Carboxylic-Phosphinic Mixed Anhydride from CO.
Yoichi Hoshimoto, Takahiro Asada, Sunit Hazra, Takuya Kinoshita, Panukorn Sombut, Masato Ohashi

Angew Chem Int Ed Engl· December 2016

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Nickel(0)-catalyzed intramolecular reductive coupling of alkenes and aldehydes or ketones with hydrosilanes.
Yukari Hayashi, Yoichi Hoshimoto, Ravindra Kumar, Masato Ohashi, Sensuke Ogoshi

Chem Commun (Camb)· May 2016

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Copper-Catalyzed Reaction of Trifluoromethylketones with Aldehydes via a Copper Difluoroenolate.
Ryohei Doi, Masato Ohashi, Sensuke Ogoshi

Angew Chem Int Ed Engl· January 2016

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Nickel(0)/N-Heterocyclic Carbene-Catalyzed Asymmetric [2 + 2 + 2] Cycloaddition of Two Enones and an Alkyne: Access to Cyclohexenes with Four Contiguous Stereogenic Centers.
Ravindra Kumar, Hiromu Tokura, Akira Nishimura, Tadashi Mori, Yoichi Hoshimoto, Masato Ohashi

Org Lett· December 2015

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A Strategy to Control the Reactivation of Frustrated Lewis Pairs from Shelf-Stable Carbene Borane Complexes.
Yoichi Hoshimoto, Takuya Kinoshita, Masato Ohashi, Sensuke Ogoshi

Angew Chem Int Ed Engl· September 2015

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