Search Results - "Motokura, Ken"

Development of Multiactive Site Catalysts for Surface Concerted Catalysis Aimed at One-Pot Synthesis by Motokura, Ken

“…Multiactive site catalysts have been developed for conducting one-pot synthesis and highly efficient reactions based on the principle of concerted catalysis…”
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Mg–Al hydrotalcite-based catalysts for one-pot synthesis of quinoline derivatives by Motokura, Ken

“…This mini-review discusses Mg–Al hydrotalcite-based catalyst systems used for modified Friedländer quinoline synthesis. The metal-grafted Mg–Al hydrotalcites…”
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Organic bases catalyze the synthesis of urea from ammonium salts derived from recovered environmental ammonia by Manaka, Yuichi, Nagatsuka, Yuki, Motokura, Ken

“…Ammonia from sewage and livestock manure is a major environmental pollutant. To consume environmental ammonia, we investigated the organic base-catalyzed…”
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Montmorillonite-based heterogeneous catalysts for efficient organic reactions by Takabatake, Moe, Motokura, Ken

“…Abstract In this review, we give a brief overview of recently developed montmorillonite-based heterogeneous catalysts used for efficient organic reactions…”
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Heterogeneous Supported Palladium Catalysts for Liquid‐Phase Allylation of Nucleophiles by Ding, Siming, Motokura, Ken

“…In recent years, palladium‐catalyzed allylation has become the focus of much research. However, conventional homogeneous Pd catalysts face problems regarding…”
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Silica-supported Alkylammonium Formate Catalyst for Hydrosilylation of Carbon Dioxide by Pramudita, Ria Ayu, Nakagawa, Chihiro, Manaka, Yuichi, Motokura, Ken

“…An amorphous silica-supported alkylammonium formate catalyst for the reductive transformation of carbon dioxide using silane as a reductant was developed…”
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Rhodium–Iodide Complex on a Catalytically Active SiO2 Surface for One‐Pot Hydrosilylation–CO2 Cycloaddition by Usui, Kei, Manaka, Yuichi, Chun, Wang‐Jae, Motokura, Ken

“…In this study, a novel Rh–iodide complex was synthesized through a surface reaction between an immobilized Rh cyclooctadiene complex and alkylammonium iodide…”
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Direct Alkylation of Benzene at Lower Temperatures in the Liquid Phase: Catalysis by Montmorillonites as Noble‐Metal‐Free Solid Acids by Takabatake, Moe, Nambo, Masayuki, Manaka, Yuichi, Motokura, Ken

“…Alkylated benzenes are widely used as raw materials for the production of a variety of chemical compounds. Conventionally, they are obtained by the…”
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Heterogeneous Synergistic Catalysis by a Palladium Complex and an Amine on a Silica Surface for Acceleration of the Tsuji-Trost Reaction by Noda, Hiroto, Motokura, Ken, Miyaji, Akimitsu, Baba, Toshihide

“…The cooperative surface‐catalysis strategy of a Brønsted acid and an organic base can be extended to a metal complex and organic base pair. A silica‐supported…”
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Formate-Catalyzed Selective Reduction of Carbon Dioxide to Formate Products Using Hydrosilanes by Motokura, Ken, Nakagawa, Chihiro, Pramudita, Ria Ayu, Manaka, Yuichi

“…Formate salts were found to be active and selective homogeneous catalysts for the hydrosilylation of CO2. Counter cations and solvents strongly affected their…”
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Heterogeneous Organic Base-Catalyzed Reactions Enhanced by Acid Supports by Motokura, Ken, Tada, Mizuki, Iwasawa, Yasuhiro

“…Amorphous silica-alumina-supported amines (SA-NR2) were found to be excellent heterogeneous catalysts for a variety of carbon−carbon bond-forming reactions,…”
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SiO2‑Supported Rh Catalyst for Efficient Hydrosilylation of Olefins Improved by Simultaneously Immobilized Tertiary Amines by Motokura, Ken, Maeda, Kyogo, Chun, Wang-Jae

“…The simultaneous immobilization of a Rh complex and a tertiary amine on a SiO2 surface afforded a highly active supported catalyst for the hydrosilylation of…”
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Organic group decorated heterogeneous Pd complex on mesoporous silica toward catalytic allylation in aqueous media by Ding, Siming, Kong, Yuanyuan, Manaka, Yuichi, Chun, Wang-Jae, Tomita, Ikuyoshi, Motokura, Ken

“…The use of water as a reaction solvent is ideal for green chemistry. However, carrying out catalytic reactions with transition metal catalysts in aqueous media…”
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Porous FeO(OH) Dispersed on Mg‐Al Hydrotalcite Surface for One‐Pot Synthesis of Quinoline Derivatives by Motokura, Ken, Ozawa, Nao, Sato, Risako, Manaka, Yuichi, Chun, Wang‐Jae

“…The use of ubiquities elements such as iron instead of expensive precious metals as catalysts is one goal toward realizing environmentally benign synthetic…”
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Multifunctional Solid Surfaces for Enhanced Catalysis by Motokura, Ken

“…Consider it solid! Multifunctional solid surfaces enhance heterogeneous catalysis by promoting efficient reaction sequences, fine‐tuning of hydrophilic and…”
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Catalytic Conversion of Biomass-Derived Carbohydrates to Methyl Lactate by Acid–Base Bifunctional γ‑Al2O3 by Yamaguchi, Sho, Yabushita, Mizuho, Kim, Minjune, Hirayama, Jun, Motokura, Ken, Fukuoka, Atsushi, Nakajima, Kiyotaka

“…We report the catalytic conversion of biomass-derived carbohydrates to methyl lactate using metal oxides. The combination of Lewis acid–base sites on γ-Al2O3…”
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Multifunctional Catalytic Surface Design for Concerted Acceleration of One-Pot Hydrosilylation–CO2 Cycloaddition by Usui, Kei, Miyashita, Kodai, Maeda, Kyogo, Manaka, Yuichi, Chun, Wang-Jae, Inazu, Koji, Motokura, Ken

“…Silica-supported Rh-ammonium iodide catalyst showed high performance for hydrosilylation–CO2 cycloaddition reaction sequences. The catalyst was prepared by…”
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Cooperative Catalysis of Primary and Tertiary Amines Immobilized on Oxide Surfaces for One-Pot C----C Bond Forming Reactions by Motokura, Ken, Tada, Mizuki, Iwasawa, Yasuhiro

“…D'you know what amine? Primary and tertiary amines are both immobilized on the same silica–alumina surface by silane‐coupling reactions. The resultant…”
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Accumulation of Active Species in Silica Mesopore: Effect of the Pore Size and Free Base Additives on Pd‐catalyzed Allylation using Allylic Alcohol by Motokura, Ken, Kawashima, Sae, Nambo, Masayuki, Manaka, Yuichi, Chun, Wang‐Jae

“…A mesoporous silica‐supported Pd complex was prepared using various types of porous silica supports (pore size: 16–31 Å). The effects of the pore size and base…”
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Influence of a Co-immobilized Tertiary Amine on the Structure and Reactivity of a Rh Complex: Accelerating Effect on Heterogeneous Hydrosilylation by Maeda, Kyogo, Uemura, Yohei, Kim, Minjune, Nakajima, Kiyotaka, Tanaka, Shinji, Chun, Wang-Jae, Motokura, Ken

“…Co-immobilization of a Rh complex and a tertiary amine on the same silica surface enhances the hydrosilylation reaction of olefins. In our previous study, the…”
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