Search Results - "Ohishi, Takeshi"

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    Carboxylation of Organoboronic Esters Catalyzed by N-Heterocyclic Carbene Copper(I) Complexes by Ohishi, Takeshi, Nishiura, Masayoshi, Hou, Zhaomin

    Published in Angewandte Chemie (International ed.) (21-07-2008)
    “…Copper complexes with a CO2 fixation: Copper(I) complexes serve as excellent catalysts for the carboxylation of aryl‐ and alkenylboronic esters with CO2,…”
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    Journal Article
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    Carboxylation of Alkylboranes by N-Heterocyclic Carbene Copper Catalysts: Synthesis of Carboxylic Acids from Terminal Alkenes and Carbon Dioxide by Ohishi, Takeshi, Zhang, Liang, Nishiura, Masayoshi, Hou, Zhaomin

    Published in Angewandte Chemie International Edition (22-08-2011)
    “…Caught in the act: N‐Heterocyclic carbene copper(I) complexes (1; IPr=1,3‐bis(2,6‐diisopropylphenyl)imidazol‐2‐ylidene) serve as an excellent catalyst for the…”
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    Copper‐Catalyzed Direct Carboxylation of CH Bonds with Carbon Dioxide by Zhang, Liang, Cheng, Jianhua, Ohishi, Takeshi, Hou, Zhaomin

    Published in Angewandte Chemie (International ed.) (08-11-2010)
    “…Cooking with gas: Copper complexes serve as excellent catalysts for the direct carboxylation of aromatic heterocyclic CH bonds with CO2, thereby offering an…”
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    Journal Article
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    Carboxylation of Alkylboranes by N-Heterocyclic Carbene Copper Catalysts: Synthesis of Carboxylic Acids from Terminal Alkenes and Carbon Dioxide by Ohishi, Takeshi, Zhang, Liang, Nishiura, Masayoshi, Hou, Zhaomin

    Published in Angewandte Chemie (22-08-2011)
    “…CO2 fixiert: Kupfer(I)‐Komplexe 1 mit dem N‐heterocyclischen Carbenliganden 1,3‐Bis(2,6‐diisopropylphenyl)imidazol‐2‐yliden) (IPr) sind ausgezeichnete…”
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    Journal Article
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    Carboxylation of Organoboronic Esters Catalyzed by N-Heterocyclic Carbene Copper(I) Complexes by Ohishi, Takeshi, Nishiura, Masayoshi, Hou, Zhaomin

    Published in Angewandte Chemie (21-07-2008)
    “…Kupferkomplexe zur CO2‐Fixierung: Kupfer(I)‐Komplexe sind ausgezeichnete Katalysatoren für die Carboxylierung von Aryl‐ und Alkenylboronsäureestern mit CO2…”
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    Journal Article
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    A new facile method for the chemoselective reductive transformation of azides to N-( tert-butoxycarbonyl)amines by Kotsuki, Hiyoshizo, Ohishi, Takeshi, Araki, Tomohiro

    Published in Tetrahedron letters (24-03-1997)
    “…A new chemoselective procedure for the reductive transformation of organic azides to the corresponding N-( tert-butoxycarbonyl)amino derivatives using…”
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    Effective Surveillance Using Multilocus Variable-Number Tandem-Repeat Analysis and Whole-Genome Sequencing for Enterohemorrhagic Escherichia coli O157 by Lee, Kenichi, Izumiya, Hidemasa, Iyoda, Sunao, Ohnishi, Makoto

    Published in Applied and environmental microbiology (01-09-2019)
    “…Due to the potential of enterohemorrhagic (EHEC) serogroup O157 to cause large food borne outbreaks, national and international surveillance is necessary. For…”
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    A Facile Chemoenzymatic Route to Optically Active 4, 5-Disubstituted-2E-hexenoate Derivatives. I by AKITA, Hiroyuki, UMEZAWA, Isao, TAKANO, Michika, OHYAMA, Chiiko, MATSUKURA, Hiroko, OHISHI, Takeshi

    “…The reaction of (±) methyl 4, 5-trans-epoxy-2E-hexenoate (2) with aromatic nucleophiles having an electrondonating group in the presence of BF3·Et2O gave the…”
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    Copper-Catalyzed Direct Carboxylation of CH Bonds with Carbon Dioxide by Zhang, Liang, Cheng, Jianhua, Ohishi, Takeshi, Hou, Zhaomin

    Published in Angewandte Chemie (08-11-2010)
    “…Auf direktem Weg: Kupferkomplexe sind hervorragende Katalysatoren für die direkte Carboxylierung von Heteroarenen mit CO2 unter C‐H‐Aktivierung, die auf…”
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    High-yielding TfOH-catalyzed condensation of phenols with aromatic aldehydes at high pressure. A model synthesis of the benzylidene biphenol key skeleton of blepharismins by Ohishi, Takeshi, Kojima, Tomoyuki, Matsuoka, Tatsuomi, Shiro, Motoo, Kotsuki, Hiyoshizo

    Published in Tetrahedron letters (26-03-2001)
    “…An approach to the benzylidene biphenol key component of blepharismins, photoreceptor pigments isolated from Blepharisma japonicum, is reported. This method…”
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    A facile new method for selective deprotection of N-( tert-butoxycarbonyl)-protected carboxamides with Yb(OTf) 3 supported on silica gel by Kotsuki, Hiyoshizo, Ohishi, Takeshi, Araki, Tomohiro, Arimura, Koji

    Published in Tetrahedron letters (02-07-1998)
    “…A selective new method for the deprotection of N-Boc carboxamides was achieved by using Yb(OTf) 3 supported on silica gel under solvent-free conditions. Graphic…”
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    A new practical method for regioselective nucleophilic aromatic alkylation of ortho- or para-methoxy-substituted aromatic esters with Grignard reagents by Kojima, Tomoyuki, Ohishi, Takeshi, Yamamoto, Izumi, Matsuoka, Tatsuomi, Kotsuki, Hiyoshizo

    Published in Tetrahedron letters (26-02-2001)
    “…A new practical method for the regioselective nucleophilic aromatic alkylation of o- or p-methoxy-substituted aromatic carboxylic acids via their…”
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