Keigo Kamata

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Base Catalysis by Mono- and Polyoxometalates

Keigo Kamata, Kosei Sugahara, 2017 .

Cyanosilylation of carbonyl compounds with trimethylsilyl cyanide catalyzed by an yttrium-pillared silicotungstate dimer.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2012, Angewandte Chemie.

Synthesis and oxidation catalysis of a Ti-substituted phosphotungstate, and identification of the active oxygen species

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015 .

Epoxidation of olefins with hydrogen peroxide catalyzed by polyoxometalates

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2005 .

Synthesis of α-Dawson-type silicotungstate [α-Si2W18O62]8- and protonation and deprotonation inside the aperture through intramolecular hydrogen bonds.

Keigo Kamata, N. Mizuno, Kosuke Suzuki, 2014, Chemistry.

Reversible deprotonation and protonation behaviors of a tetra-protonated γ-Keggin silicodecatungstate.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2012, Inorganic chemistry.

Palladium(II) containing γ-Keggin silicodecatungstate that efficiently catalyzes hydration of nitriles.

Keigo Kamata, N. Mizuno, T. Hirano, 2012, Journal of the American Chemical Society.

A highly negatively charged γ-Keggin germanodecatungstate efficient for Knoevenagel condensation.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2012, Chemical communications.

1,3-Dipolar cycloaddition of organic azides to alkynes by a dicopper-substituted silicotungstate.

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2008, Journal of the American Chemical Society.

Extremely Active Hydrogen Evolution Catalyst Electrochemically Generated from a Ruthenium-Based Perovskite-Type Precursor

Keigo Kamata, T. Yamaguchi, Yuuki Sugawara, 2019, ACS Applied Energy Materials.

One-pot reductive amination of carbonyl compounds with nitro compounds over a Ni/NiO composite

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2020, RSC advances.

An Efficient One-pot Three-component Reaction to Produce 1,4-Disubstituted-1,2,3-triazoles Catalyzed by a Dicopper-substituted Silicotungstate

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2008 .

Scope and reaction mechanism of an aerobic oxidative alkyne homocoupling catalyzed by a di-copper-substituted silicotungstate

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2010 .

Template-Free Synthesis of Mesoporous β-MnO2 Nanoparticles: Structure, Formation Mechanism, and Catalytic Properties.

Michikazu Hara, Keigo Kamata, E. Hayashi, 2020, ACS applied materials & interfaces.

Efficient heterogeneous epoxidation of alkenes by a supported tungsten oxide catalyst.

Keigo Kamata, N. Mizuno, Koji Yonehara, 2011, Angewandte Chemie.

Efficient epoxidation of electron-deficient alkenes with hydrogen peroxide catalyzed by [γ-PW10O38V2(μ-OH)2]3-.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2011, Chemistry.

Hydrogen-bond-assisted epoxidation of homoallylic and allylic alcohols with hydrogen peroxide catalyzed by selenium-containing dinuclear peroxotungstate.

Keigo Kamata, N. Mizuno, T. Hirano, 2009, Journal of the American Chemical Society.

Structure‐Function Relationships in Fructose Dehydration to 5‐Hydroxymethylfurfural under Mild Conditions by Porous Ionic Crystals Constructed with Analogous Building Blocks

Michikazu Hara, Keigo Kamata, S. Uchida, 2019, ChemCatChem.

Electronic Effect of Ruthenium Nanoparticles on Efficient Reductive Amination of Carbonyl Compounds.

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2017, Journal of the American Chemical Society.

Iron phosphate nanoparticle catalyst for direct oxidation of methane into formaldehyde: effect of surface redox and acid–base properties

Michikazu Hara, Keigo Kamata, Haruka Tateno, 2021, Catalysis Science & Technology.

Base-Assisted Aerobic C-H Oxidation of Alkylarenes with a Murdochite-Type Oxide Mg6MnO8 Nanoparticle Catalyst.

Michikazu Hara, Keigo Kamata, E. Hayashi, 2022, ACS applied materials & interfaces.

Effects of ruthenium hydride species on primary amine synthesis by direct amination of alcohols over a heterogeneous Ru catalyst

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2020, Chemical science.

Perovskite Oxide Catalysts for Liquid-Phase Organic Reactions

Keigo Kamata, 2019, Bulletin of the Chemical Society of Japan.

Heterogeneously Catalyzed Aerobic Oxidation of Sulfides with a BaRuO3 Nanoperovskite.

Michikazu Hara, Keigo Kamata, Kosei Sugahara, 2018, ACS applied materials & interfaces.

Heterogeneously-Catalyzed Aerobic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid with MnO2.

Michikazu Hara, Keigo Kamata, E. Hayashi, 2017, ChemSusChem.

Electronic Effect in a Ruthenium Catalyst Designed in Nanoporous N-Functionalized Carbon for Efficient Hydrogenation of Heteroarenes.

Michikazu Hara, Keigo Kamata, A. Bhaumik, 2020, ACS applied materials & interfaces.

Scope of chemical fixation of carbon dioxide catalyzed by a bifunctional monomeric tungstate

Keigo Kamata, N. Mizuno, Toshihiro Kimura, 2014 .

Efficient [WO4](2-)-catalyzed chemical fixation of carbon dioxide with 2-aminobenzonitriles to quinazoline-2,4(1H,3H)-diones.

Keigo Kamata, N. Mizuno, Toshihiro Kimura, 2012, Inorganic chemistry.

Metal oxide electrocatalyst support for carbon-free durable electrodes with excellent corrosion resistance at high potential conditions

Keigo Kamata, G. Anilkumar, T. Yamaguchi, 2021 .

Polyoxovanadometalate-catalyzed selective epoxidation of alkenes with hydrogen peroxide.

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2005, Angewandte Chemie.

Photoassist-phosphorylated TiO2 as a catalyst for direct formation of 5-(hydroxymethyl)furfural from glucose.

Michikazu Hara, Keigo Kamata, M. Hattori, 2017, Physical chemistry chemical physics : PCCP.

Formation of 5-(Hydroxymethyl)furfural by Stepwise Dehydration over TiO2 with Water-Tolerant Lewis Acid Sites

Michikazu Hara, Keigo Kamata, M. Kitano, 2015 .

Selective Oxidation with Aqueous Hydrogen Peroxide by [PO4{WO(O2)2}4]3− Supported on Zinc‐Modified Tin Dioxide

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015 .

Synthesis and structural characterization of BINOL-modified chiral polyoxometalates.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015, Dalton transactions.

Composites of [γ-H2PV2W10O40]3− and [α-SiW12O40]4− supported on Fe2O3 as heterogeneous catalysts for selective oxidation with aqueous hydrogen peroxide

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015 .

Synthesis, Structural Characterization, and Oxidation Catalysis of a Diniobium-substituted Silicodecatungstate

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015 .

A basic germanodecatungstate with a -7 charge: efficient chemoselective acylation of primary alcohols.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2014, Angewandte Chemie.

Hydrosilylation of Various Multiple Bonds by a Simple Combined Catalyst of a Tungstate Monomer and Rhodium Acetate

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2013 .

Efficient sulfoxidation with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2013 .

Strategic design and refinement of Lewis acid-base catalysis by rare-earth-metal-containing polyoxometalates.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2012, Inorganic chemistry.

Catalytic oxidation of hydrocarbons with hydrogen peroxide by vanadium-based polyoxometalates

Keigo Kamata, N. Mizuno, 2011 .

Efficient oxidative alkyne homocoupling catalyzed by a monomeric dicopper-substituted silicotungstate.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2008, Angewandte Chemie.

A highly active protonated tetranuclear peroxotungstate for oxidation with hydrogen peroxide.

Keigo Kamata, N. Mizuno, R. Ishimoto, 2012, Angewandte Chemie.

Aerobic oxidative CC bond cleavage of aromatic alkenes by a high valency iron-containing perovskite catalyst

Michikazu Hara, Keigo Kamata, Satomi Shibata, 2021, Catalysis Science & Technology.

Benzylic C H fluorination over supported silver catalyst

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2019, Molecular Catalysis.

A γ-Keggin-type Dimeric Silicotungstate Sandwiching an Adamantanoid Tetra-nuclear Ruthenium-Oxygen Cluster Core

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2008 .

Activation of hydrogen peroxide by polyoxometalates.

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2008 .

Molecular design of selective oxidation catalyst with polyoxometalate

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2006 .

A bifunctional cerium phosphate catalyst for chemoselective acetalization

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2017, Chemical science.

Synthesis and structural characterization of a monomeric di-copper-substituted silicotungstate [γ-H2SiW10O36Cu2(μ-1,1-N3)2]4− and the catalysis of oxidative homocoupling of alkynes

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2008 .

Selective Oxidation of Hydrocarbons with Molecular Oxygen Catalyzed by Transition-Metal-Substituted Silicotungstates

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2002 .

A Monovacant Lacunary Silicotungstate as an Efficient Heterogeneous Catalyst for Dehydration of Primary Amides to Nitriles

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2013 .

Oxidative functional group transformations with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2012 .

Molecular Design of Polyoxometalate-Based Compounds for Environmentally-Friendly Functional Group Transformations: From Molecular Catalysts to Heterogeneous Catalysts

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2011 .

Heterogeneously catalyzed aerobic oxidative biaryl coupling of 2-naphthols and substituted phenols in water.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2005, Journal of the American Chemical Society.

Deposition of highly dispersed gold nanoparticles onto metal phosphates by deposition–precipitation with aqueous ammonia

Keigo Kamata, H. Miura, T. Shishido, 2021, Catalysis Science & Technology.

Efficient Epoxidation of Olefins with ≥99% Selectivity and Use of Hydrogen Peroxide

Keigo Kamata, N. Mizuno, S. Hikichi, 2003, Science.

One-pot aerobic oxidative sulfonamidation of aromatic thiols with ammonia by a dual-functional β-MnO2 nanocatalyst.

Michikazu Hara, Keigo Kamata, E. Hayashi, 2020, Chemical communications.

μ-η1: η1-Peroxo -bridged dinuclear peroxotungstate catalytically active for epoxidation of olefins

Keigo Kamata, N. Mizuno, Syuhei Yamaguchi, 2007 .

Highly selective, recyclable epoxidation of allylic alcohols with hydrogen peroxide in water catalyzed by dinuclear peroxotungstate.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2004, Chemistry.

[{W(O)(O2)2(H2O)}2(μ‐O)]2–‐Catalyzed Epoxidation of Allylic Alcohols in Water with High Selectivity and Utilization of Hydrogen Peroxide

Keigo Kamata, N. Mizuno, S. Hikichi, 2003 .

Highly efficient oxidation of sulfides with hydrogen peroxide catalyzed by [SeO(4){WO(O(2))(2)}(2)](2-).

Keigo Kamata, N. Mizuno, T. Hirano, 2009, Chemical communications.

Liquid-Phase Oxidations Catalyzed by Polyoxometalates

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2006 .

Epoxidation of alkenes with hydrogen peroxide catalyzed by selenium-containing dinuclear peroxotungstate and kinetic, spectroscopic, and theoretical investigation of the mechanism.

Keigo Kamata, N. Mizuno, T. Hirano, 2010, Inorganic chemistry.

Selective N‐Alkylation of Indoles with α,β‐Unsaturated Compounds Catalyzed by a Monomeric Phosphate

Keigo Kamata, N. Mizuno, Hanako Sunaba, 2014 .

Heterogeneous Low-Valent Mn Catalysts for α-Alkylation of Ketones with Alcohols through Borrowing Hydrogen Methodology

Michikazu Hara, Keigo Kamata, Yusuke Kita, 2022, ACS Catalysis.

Cyclopropanation of Olefins with Diazo Compounds Catalyzed by a Dicopper-substituted Silicotungstate [γ-H2SiW10O36Cu2(μ-1,1-N3)2]4−

Keigo Kamata, N. Mizuno, Toshihiro Kimura, 2010 .

A bifunctional tungstate catalyst for chemical fixation of CO2 at atmospheric pressure.

Toshihiro Kimura, Noritaka Mizuno, Keigo Kamata, 2012, Angewandte Chemie.

Structural and dynamical aspects of alkylammonium salts of a silicodecatungstate as heterogeneous epoxidation catalysts.

Keigo Kamata, N. Mizuno, S. Uchida, 2012, Dalton transactions.

Rhodium acetate/base-catalyzed N-silylation of indole derivatives with hydrosilanes.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2012, Chemical communications.

Efficient stereo- and regioselective hydroxylation of alkanes catalysed by a bulky polyoxometalate

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2010, Nature Chemistry.

Sulfoxidation with hydrogen peroxide catalyzed by [SeO(4){WO(O(2))(2)}(2)](2-).

Keigo Kamata, N. Mizuno, T. Hirano, 2010, Dalton transactions.

Preparation of Mesoporous Basic Oxides through Assembly of Monodispersed Mg-Al Layered Double Hydroxide Nanoparticles.

Keigo Kamata, K. Kuroda, Atsushi Shimojima, 2017, Chemistry.

A supported copper hydroxide as an efficient, ligand-free, and heterogeneous precatalyst for 1,3-dipolar cycloadditions of organic azides to terminal alkynes.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2009, ChemSusChem.

Chemo- and regioselective direct hydroxylation of arenes with hydrogen peroxide catalyzed by a divanadium-substituted phosphotungstate.

Keigo Kamata, N. Mizuno, Taiyo Yamaura, 2012, Angewandte Chemie.

Efficient Heterogeneous Oxidation of Allylarenes with Molecular Oxygen.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2005 .

Efficient heterogeneous oxidation of alkylarenes with molecular oxygen.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2004, Organic letters.

Highly selective oxidation of organosilanes to silanols with hydrogen peroxide catalyzed by a lacunary polyoxotungstate.

Keigo Kamata, N. Mizuno, R. Ishimoto, 2009, Angewandte Chemie.

Design of Highly Functionalized Polyoxometalate-Based Catalysts

Keigo Kamata, 2015 .

Synthesis and structural characterization of inorganic-organic-inorganic hybrids of dipalladium-substituted γ-Keggin silicodecatungstates.

Keigo Kamata, N. Mizuno, M. Hibino, 2013, Inorganic chemistry.

Liquid-Phase Selective Oxidation by Multimetallic Active Sites of Polyoxometalate-Based Molecular Catalysts

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2011 .

Efficient, regioselective epoxidation of dienes with hydrogen peroxide catalyzed by [γ-SiW10O34(H2O)2]4−

Keigo Kamata, N. Mizuno, Y. Nakagawa, 2004 .

Low-Temperature Reductive Amination of Carbonyl Compounds over Ru Deposited on Nb2O5·nH2O

Michikazu Hara, Keigo Kamata, Dian Deng, 2019, ACS Sustainable Chemistry & Engineering.

A flexible nonporous heterogeneous catalyst for size-selective oxidation through a bottom-up approach.

Keigo Kamata, N. Mizuno, S. Uchida, 2010, Angewandte Chemie.

Highly Selective Epoxidation of Cycloaliphatic Alkenes with Aqueous Hydrogen Peroxide Catalyzed by [PO4{WO(O2)2}4]3−/Imidazole

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2014 .

Olefin Epoxidation with Hydrogen Peroxide Catalyzed by Lacunary Polyoxometalate [γ‐SiW10O34(H2O)2]4−

Keigo Kamata, N. Mizuno, S. Hikichi, 2007 .

Effect of MnO2 Crystal Structure on Aerobic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid.

Michikazu Hara, Keigo Kamata, F. Oba, 2019, Journal of the American Chemical Society.

Investigation of the Reaction Mechanism for the Epoxidation of Alkenes with Hydrogen Peroxide Catalyzed by a Protonated Tetranuclear Peroxotungstate with NMR Spectroscopy, Kinetics, and DFT Calculations†

Keigo Kamata, N. Mizuno, R. Ishimoto, 2013 .

Recent progress in the development of solid catalysts for biomass conversion into high value-added chemicals

Michikazu Hara, Keigo Kamata, K. Nakajima, 2015, Science and technology of advanced materials.

Synthesis and Aerobic Oxidation Catalysis of Mesoporous Todorokite-Type Manganese Oxide Nanoparticles by Crystallization of Precursors.

Michikazu Hara, Keigo Kamata, E. Hayashi, 2022, Journal of the American Chemical Society.

Amino Acid-Aided Synthesis of a Hexagonal SrMnO3 Nanoperovskite Catalyst for Aerobic Oxidation

Michikazu Hara, Keigo Kamata, Kosei Sugahara, 2017, ACS omega.

Dioxygen Activation by a Hexagonal SrMnO3 Perovskite Catalyst for Aerobic Liquid‐Phase Oxidation

Michikazu Hara, Keigo Kamata, S. Kawasaki, 2016 .

Back Cover: Heterogeneously‐Catalyzed Aerobic Oxidation of 5‐Hydroxymethylfurfural to 2,5‐Furandicarboxylic Acid with MnO2 (ChemSusChem 4/2017)

Michikazu Hara, Keigo Kamata, E. Hayashi, 2017 .

A Combined Catalyst of Pt Nanoparticles and TiO2 with Water‐Tolerant Lewis Acid Sites for One‐Pot Conversion of Glycerol to Lactic Acid

Michikazu Hara, Keigo Kamata, M. Kitano, 2016 .

Liquid‐Phase Oxidations with Hydrogen Peroxide and Molecular Oxygen Catalyzed by Polyoxometalate‐Based Compounds

Keigo Kamata, N. Mizuno, S. Uchida, 2009 .

Ambient-temperature oxidative coupling of methane in an electric field by a cerium phosphate nanorod catalyst.

Michikazu Hara, Keigo Kamata, T. Yabe, 2019, Chemical communications.

Efficient Epoxidation of Electron-Deficient Alkenes with Hydrogen Peroxide Catalyzed by [γ-PW10O38V2(μ-OH)2] 3-.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2011 .

An efficient H2O2-based oxidative bromination of alkenes, alkynes, and aromatics by a divanadium-substituted phosphotungstate.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2011, Chemical communications.

Novel All-inorganic Mononuclear Chloro Oxo Diperoxotungstate

Keigo Kamata, N. Mizuno, R. Ishimoto, 2013 .

Synthesis, Structural Characterization, and Catalytic Performance of Dititanium-Substituted γ-Keggin Silicotungstate

Keigo Kamata, N. Mizuno, S. Hikichi, 2006 .

Efficient Oxygen Evolution Electrocatalysis on CaFe2O4 and Its Reaction Mechanism

Keigo Kamata, Y. Tateyama, T. Yamaguchi, 2021 .

Nanosized Ti-Based Perovskite Oxides as Acid–Base Bifunctional Catalysts for Cyanosilylation of Carbonyl Compounds

Keigo Kamata, T. Aihara, Y. Kumagai, 2023, ACS applied materials & interfaces.

Green Oxidation Reactions by Polyoxometalate-Based Catalysts: From Molecular to Solid Catalysts

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2010 .

Selective Oxidation with Aqueous Hydrogen Peroxide by [PO4{WO(O2)2}4]3‐ Supported on Zinc‐Modified Tin Dioxide.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2015 .

Liquid-phase oxidation of alkanes with molecular oxygen catalyzed by high valent iron-based perovskite.

Keigo Kamata, Kosei Sugahara, Satomi Shibata, 2018, Chemical communications.

A Monovacant Lacunary Silicotungstate as an Efficient Heterogeneous Catalyst for Dehydration of Primary Amides to Nitriles.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2013 .

Efficient Epoxidation of Olefins with ≥ 99% Selectivity and Use of Hydrogen Peroxide.

Keigo Kamata, N. Mizuno, S. Hikichi, 2003 .

Sulfoxidation with hydrogen peroxide catalyzed by [SeO(4){WO(O(2))(2)}(2)](2-).

Keigo Kamata, N. Mizuno, T. Hirano, 2010, Dalton transactions.

Cyanosilylation of carbonyl compounds with trimethylsilyl cyanide catalyzed by an yttrium-pillared silicotungstate dimer.

Keigo Kamata, N. Mizuno, K. Yamaguchi, 2012, Angewandte Chemie.

Highly efficient oxidation of sulfides with hydrogen peroxide catalyzed by [SeO(4){WO(O(2))(2)}(2)](2-).

Keigo Kamata, N. Mizuno, T. Hirano, 2009, Chemical communications.

A high performance catalyst of shape-specific ruthenium nanoparticles for production of primary amines by reductive amination of carbonyl compounds

Keigo Kamata, A. Bhaumik, M. Kitano, 2018, Chemical science.

A highly negatively charged γ-Keggin germanodecatungstate efficient for Knoevenagel condensation.

Keigo Kamata, Kosei Sugahara, N. Mizuno, 2012, Chemical communications.