Search Results - "Esaki, Hiroyoshi"

Theoretical Study of the Mechanism of Ribosomal Peptide Bond Formation Using the ONIOM Method by Fukushima, Kazuaki, Esaki, Hiroyoshi

“…Peptide bond formation in living cells occurs at the peptidyl transferase center (PTC) of the large ribosomal subunit and involves the transfer of the peptidyl…”
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Methoxy Groups Increase Reactivity of Bifunctional Tetraarylphosphonium Salt Catalysts for Carbon Dioxide Fixation: A Mechanistic Study by Toda, Yasunori, Komiyama, Yutaka, Esaki, Hiroyoshi, Fukushima, Kazuaki, Suga, Hiroyuki

“…The development of carbon dioxide fixation under mild conditions is a central theme in organic synthesis. Despite the tremendous progress in the field of…”
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Synthesis of 4‑Imidazolidinones from Diamides and Ethynyl Benziodoxolones via Double Michael-Type Addition: Ethynyl Benziodoxolones as Electrophilic Ynol Synthons by Shimizu, Ayaka, Shibata, Atsushi, Kano, Takashi, Kumai, Yuuichi, Kawakami, Ryouhei, Esaki, Hiroyoshi, Fukushima, Kazuaki, Tada, Norihiro, Itoh, Akichika

“…The moiety of 4-imidazolidinone is an important structural motif in organic synthesis and medicinal chemistry. We present the synthesis of 4-imidazolidinones…”
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Enantioselective Protonation of Cyclic Carbonyl Ylides by Chiral Lewis Acid Assisted Alcohols by Toda, Yasunori, Yoshida, Takayuki, Arisue, Kaoru, Fukushima, Kazuaki, Esaki, Hiroyoshi, Kikuchi, Ayaka, Suga, Hiroyuki

“…Chiral Lewis acid‐catalyzed asymmetric alcohol addition reactions to cyclic carbonyl ylides generated from N‐(α‐diazocarbonyl)‐2‐oxazolidinones featuring a…”
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Amine‐Urea‐Mediated Asymmetric Cycloadditions between Nitrile Oxides and o‐Hydroxystyrenes by Dual Activation by Suga, Hiroyuki, Hashimoto, Yohei, Toda, Yasunori, Fukushima, Kazuaki, Esaki, Hiroyoshi, Kikuchi, Ayaka

“…The first example of asymmetric 1,3‐dipolar cycloadditions between nitrile oxides and o‐hydroxystyrenes, mediated by cinchona‐alkaloid‐based amine‐ureas is…”
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Enantioselective Cycloadditions between Aliphatic Nitrile Oxides and 2-Hydroxystyrenes Catalyzed by Chiral Amine-Urea by Suga, Hiroyuki, Toda, Yasunori, Koyama, Masato, Fukushima, Kazuaki, Esaki, Hiroyoshi

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Mild and Efficient H/D Exchange of Alkanes Based on C----H Activation Catalyzed by Rhodium on Charcoal by Maegawa, Tomohiro, Fujiwara, Yuta, Inagaki, Yuya, Esaki, Hiroyoshi, Monguchi, Yasunari, Sajiki, Hironao

“…Easy access: In the presence of Rh/C in D2O under H2 at 160 °C the H/D exchange reaction of unfunctionalized alkanes can easily occur (see scheme). Inexpensive…”
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Efficient and Selective Pt/C-Catalyzed H–D Exchange Reaction of Aromatic Rings by Ito, Nobuhiro, Esaki, Hiroyoshi, Maesawa, Tsuneaki, Imamiya, Eikoh, Maegawa, Tomohiro, Sajiki, Hironao

“…An effective and applicable deuteration method for aromatic rings using Pt/C–D2O–H2 system was established. Especially, phenol was fully deuterated even at…”
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Novel Pd/C-Catalyzed Redox Reactions between Aliphatic Secondary Alcohols and Ketones under Hydrogenation Conditions:  Application to H−D Exchange Reaction and the Mechanistic Study by Esaki, Hiroyoshi, Ohtaki, Rumi, Maegawa, Tomohiro, Monguchi, Yasunari, Sajiki, Hironao

“…A liquid-phase redox system between secondary alcohols and ketones is described. Deuteration of either secondary alcohols or ketones using the Pd/C−H2−D2O…”
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Efficient H/D Exchange Reactions of Alkyl-Substituted Benzene Derivatives by Means of the Pd/C-H2-D2O System by Esaki, Hiroyoshi, Aoki, Fumiyo, Umemura, Miho, Kato, Masatsugu, Maegawa, Tomohiro, Monguchi, Yasunari, Sajiki, Hironao

“…A method for efficient and extensive H/D exchange of substituted benzene derivatives which is catalyzed by heterogeneous Pd/C in D2O as a deuterium source…”
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Enzymatic and structural characterization of an archaeal thiamin phosphate synthase by Hayashi, Maria, Kobayashi, Kazuya, Esaki, Hiroyoshi, Konno, Hiroyuki, Akaji, Kenichi, Tazuya, Keiko, Yamada, Kazuko, Nakabayashi, Toshikatsu, Nosaka, Kazuto

“…Studies on thiamin biosynthesis have so far been achieved in eubacteria, yeast and plants, in which the thiamin structure is formed as thiamin phosphate from a…”
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Aromatic ring favorable and efficient H–D exchange reaction catalyzed by Pt/C by Sajiki, Hironao, Ito, Nobuhiro, Esaki, Hiroyoshi, Maesawa, Tsuneaki, Maegawa, Tomohiro, Hirota, Kosaku

“…An effective and applicable Pt/C-catalyzed deuteration method of aromatic rings using D2O as a deuterium source under hydrogen atmosphere was developed. Five…”
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Efficient C−H/C−D Exchange Reaction on the Alkyl Side Chain of Aromatic Compounds Using Heterogeneous Pd/C in D2O by Sajiki, Hironao, Aoki, Fumiyo, Esaki, Hiroyoshi, Maegawa, Tomohiro, Hirota, Kosaku

“…An efficient and extensive deuterium incorporation using heterogeneous Pd/C−D2O−H2 system into many different types of unactivated C−H bond positions was…”
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Chemoselective Hydrogenation Catalyzed by Pd on Spherical Carbon by Esaki, Hiroyoshi, Hattori, Tomohiro, Tsubone, Aya, Mibayashi, Satoko, Sakata, Takao, Sawama, Yoshinari, Monguchi, Yasunari, Yasuda, Hidehiro, Nosaka, Kazuto, Sajiki, Hironao

“…We have developed a highly chemoselective hydrogenation method using a novel palladium catalyst supported on spherical carbon (0.5 % Pd/SC). The 0.5 % Pd/SC…”
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Complete Replacement of H2 by D2 via Pd/C-Catalyzed H/D Exchange Reaction by Sajiki, Hironao, Kurita, Takanori, Esaki, Hiroyoshi, Aoki, Fumiyo, Maegawa, Tomohiro, Hirota, Kosaku

“…A general and in situ D2 gas generation method using 10% Pd/C-catalyzed H2−D2 exchange reaction in a H2−D2O system has been developed. H2 gas sealed in a…”
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Facile and Convenient Method of Deuterium Gas Generation Using a Pd/C-Catalyzed H2-D2 Exchange Reaction and Its Application to Synthesis of Deuterium-Labeled Compounds by Kurita, Takanori, Aoki, Fumiyo, Mizumoto, Takuto, Maejima, Toshihide, Esaki, Hiroyoshi, Maegawa, Tomohiro, Monguchi, Yasunari, Sajiki, Hironao

“…The Pd/C‐catalyzed H2–D2 exchange reaction using a H2–D2O combination provided a general, efficient and environmentally friendly route for the preparation of…”
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Mild and Efficient H/D Exchange of Alkanes Based on CH Activation Catalyzed by Rhodium on Charcoal by Maegawa, Tomohiro, Fujiwara, Yuta, Inagaki, Yuya, Esaki, Hiroyoshi, Monguchi, Yasunari, Sajiki, Hironao

“…Ganz einfach gelingt der H/D‐Austausch nichtfunktionalisierter Alkane in Gegenwart von Rh/C in D2O unter H2 bei 160 °C (siehe Schema). Mit billigen Reagentien…”
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Facile and Convenient Method of Deuterium Gas Generation Using a Pd/C‐Catalyzed H 2 –D 2 Exchange Reaction and Its Application to Synthesis of Deuterium‐Labeled Compounds by Kurita, Takanori, Aoki, Fumiyo, Mizumoto, Takuto, Maejima, Toshihide, Esaki, Hiroyoshi, Maegawa, Tomohiro, Monguchi, Yasunari, Sajiki, Hironao

“…Abstract The Pd/C‐catalyzed H 2 –D 2 exchange reaction using a H 2 –D 2 O combination provided a general, efficient and environmentally friendly route for the…”
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General method of obtaining deuterium-labeled heterocyclic compounds using neutral D2O with heterogeneous Pd/C by Esaki, Hiroyoshi, Ito, Nobuhiro, Sakai, Shino, Maegawa, Tomohiro, Monguchi, Yasunari, Sajiki, Hironao

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Facilitated recruitment of Pdc2p, a yeast transcriptional activator, in response to thiamin starvation by Nosaka, Kazuto, Esaki, Hiroyoshi, Onozuka, Mari, Konno, Hiroyuki, Hattori, Yasunao, Akaji, Kenichi

“…Abstract In Saccharomyces cerevisiae, genes involved in thiamin pyrophosphate (TPP) synthesis (THI genes) and the pyruvate decarboxylase structural gene PDC5…”
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