Search Results - "Mitsuru Shindo"

Synthesis of 1,8,13-Substituted Triptycenes by Iwata, Takayuki, Shindo, Mitsuru

“…Triptycene is an aromatic compound with D3h symmetry, where three benzene rings are fused to a bicyclo[2.2.2]octatriene skeleton. 1,8,13-Substituted…”
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Synthesis of 9-Hydroxytriptycenes Bearing a Functionalized Substituent at the C-10 Position through a Triple Cycloaddition Reaction of Ynolates Derived from 2,6-Di-tert-butylphenyl Esters by Sun, Jun, Iwata, Takayuki, Shindo, Mitsuru

“…Herein, we report the synthesis of various 9-hydroxytriptycenes bearing a functionalized substituent at the C-10 position through a one-pot triple…”
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Synthesis of Distorted 1,8,13‐Trisilyl‐9‐hydroxytriptycenes by Triple Cycloaddition of Ynolates to 3‐Silylbenzynes by Yoshinaga, Tatsuro, Fujiwara, Takumi, Iwata, Takayuki, Shindo, Mitsuru

“…1,8,13‐Trialkyl(aryl)silyl‐9‐hydroxytriptycenes (trisilyltriptycenes) were synthesized by the triple addition of ynolates and 3‐silylbenzynes with high…”
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Retro‐Friedel‐Crafts‐Type Acidic Ring‐Opening of Triptycenes: A New Synthetic Approach to Acenes by Iwata, Takayuki, Kawano, Ryusei, Fukami, Takuto, Shindo, Mitsuru

“…The triptycene scaffold has been ring‐opened by using a retro‐Friedel‐Crafts‐type reaction under acidic conditions to give its corresponding anthrone product…”
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Heterogeneous Rhodium-Catalyzed Aerobic Oxidative Dehydrogenative Cross-Coupling: Nonsymmetrical Biaryl Amines by Matsumoto, Kenji, Yoshida, Masahiro, Shindo, Mitsuru

“…The first heterogeneously catalyzed oxidative dehydrogenative cross‐coupling of aryl amines is reported herein. 2‐Naphthylamine analogues were reacted with…”
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Cu(II)-Catalyzed Acylation by Thiol Esters Under Neutral Conditions: Tandem Acylation-Wittig Reaction Leading to a One-Pot Synthesis of Butenolides by Matsuo, Kazumasa, Shindo, Mitsuru

“…The first catalytic acylation of alcohols with a thiol ester present in Wittig reagents under neutral conditions catalyzed by the Cu(II) salt through a…”
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Synthesis of Ynolates via Double Deprotonation of Nonbrominated Esters by Sun, Jun, Yoshiiwa, Toshiya, Iwata, Takayuki, Shindo, Mitsuru

“…Herein, we report a double deprotonation method used for the preparation of ynolates starting from nonbrominated 2,6-di-tert-butylphenyl esters. The current…”
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Synthesis, Stereochemical Stability, and Biological Activity of Stemonamine and Its Related Stemona Alkaloids by Shindo, Mitsuru, Iwata, Takayuki

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Quadruple Role of Pd Catalyst in Domino Reaction Involving Aryl to Alkyl 1,5‐Pd Migration to Access 1,9‐Bridged Triptycenes by Iwata, Takayuki, Kumagai, Satoru, Yoshinaga, Tatsuro, Hanada, Masato, Shiota, Yoshihito, Yoshizawa, Kazunari, Shindo, Mitsuru

“…A Pd‐catalyzed domino reaction of 1,8,13‐tribromo‐9‐methoxytriptycenes is reported. Under conventional Suzuki coupling conditions, the triptycenes underwent…”
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Aerobic oxidative homocoupling reaction of anilides using heterogeneous metal catalysts by Fujimoto, Shigenobu, Matsumoto, Kenji, Iwata, Takayuki, Shindo, Mitsuru

“…[Display omitted] •We have developed the first heterogeneous metal-catalyzed oxidative homocoupling reaction of dimethoxyanilides.•This reaction can be carried…”
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Aerobic Oxidative Homocoupling of Aryl Amines Using Heterogeneous Rhodium Catalysts by Matsumoto, Kenji, Dougomori, Kento, Tachikawa, Shohei, Ishii, Takanori, Shindo, Mitsuru

“…The first heterogeneous catalyzed oxidative coupling of aryl amines is reported. Aryl amines were dimerized at room temperature under air using a heterogeneous…”
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Regioselective One‐Pot Synthesis of Triptycenes via Triple‐Cycloadditions of Arynes to Ynolates by Umezu, Satoshi, dos Passos Gomes, Gabriel, Yoshinaga, Tatsuro, Sakae, Mikei, Matsumoto, Kenji, Iwata, Takayuki, Alabugin, Igor, Shindo, Mitsuru

“…We developed the novel one‐pot synthetic method of substituted triptycenes by the reaction of ynolates and arynes. This four‐step process involves three…”
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Aerobic Oxidative Intramolecular Aromatic Coupling via Heterogeneous Metal Catalysts by Fujimoto, Shigenobu, Matsumoto, Kenji, Shindo, Mitsuru

“…An aerobic, heterogeneously catalyzed oxidative intramolecular coupling reaction of aromatic compounds is reported here. Using commercially available,…”
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Palladium-Catalyzed Fluoride-Free Cross-Coupling of Intramolecularly Activated Alkenylsilanes and Alkenylgermanes: Synthesis of Tamoxifen as a Synthetic Application by Matsumoto, Kenji, Shindo, Mitsuru

“…We have demonstrated that intramolecular hypercoordination of a carboxylic acid is a powerful activation strategy for the palladium‐catalyzed cross‐coupling…”
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Asymmetric Total Synthesis of (−)‐Stemonamine and Its Stereochemical Stability by Fujita, Satoshi, Nishikawa, Keisuke, Iwata, Takayuki, Tomiyama, Taishi, Ikenaga, Hiroshi, Matsumoto, Kenji, Shindo, Mitsuru

“…The first asymmetric total synthesis of (−)‐stemonamine is described. The key reactions included intramolecular acylation to construct the seven‐membered ring…”
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(–)-Xanthatin as a Killer of Human Breast Cancer MCF-7 Mammosphere Cells: A Comparative Study with Salinomycin by Takeda, Shuso, Hirao-Suzuki, Masayo, Shindo, Mitsuru, Aramaki, Hironori

“…Experimental evidence accumulated by our research group and others strongly suggests that (–)-xanthatin, a xanthanolide sesquiterpene lactone, exhibits…”
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KH‐17, a simplified derivative of bongkrekic acid, weakly inhibits the mitochondrial ADP/ATP carrier from both sides of the inner mitochondrial membrane by Takegawa, Kazuto, Ito, Takeshi, Yamamoto, Atsushi, Yamazaki, Naoshi, Shindo, Mitsuru, Shinohara, Yasuo

“…Two natural products, bongkrekic acid and carboxyatractyloside, are known to specifically inhibit the mitochondrial ADP/ATP carrier from its matrix side and…”
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Aerobic C–H Oxidation of Arenes Using a Recyclable, Heterogeneous Rhodium Catalyst by Matsumoto, Kenji, Tachikawa, Shohei, Hashimoto, Noriko, Nakano, Rina, Yoshida, Masahiro, Shindo, Mitsuru

“…A novel, practical protocol for the aerobic direct C–H acetoxylation of arenes, employing a recyclable heterogeneous rhodium catalyst, is reported herein. The…”
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Catalytic and Aerobic Oxidative Biaryl Coupling of Anilines Using a Recyclable Heterogeneous Catalyst for Synthesis of Benzidines and Bicarbazoles by Matsumoto, Kenji, Toubaru, Yasunori, Tachikawa, Shohei, Miki, Ayaka, Sakai, Kentaro, Koroki, Syota, Hirokane, Tsukasa, Shindo, Mitsuru, Yoshida, Masahiro

“…In this study, a heterogeneous rhodium-catalyzed oxidative homocoupling reaction of anilines utilizing molecular oxygen as the sole oxidant is reported…”
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Lotus japonicus karrikin receptors display divergent ligand-binding specificities and organ-dependent redundancy by Carbonnel, Samy, Torabi, Salar, Griesmann, Maximilian, Bleek, Elias, Tang, Yuhong, Buchka, Stefan, Basso, Veronica, Shindo, Mitsuru, Boyer, François-Didier, Wang, Trevor L, Udvardi, Michael, Waters, Mark T, Gutjahr, Caroline

“…Karrikins (KARs), smoke-derived butenolides, are perceived by the α/β-fold hydrolase KARRIKIN INSENSITIVE2 (KAI2) and thought to mimic endogenous, yet elusive…”
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