126
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Mitamura T, Daitou M, Nomoto A, Ogawa A. Highly Regioselective Double Hydrothiolation of Terminal Acetylenes with Thiols Catalyzed by Palladium Diacetate. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100311] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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127
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Ozaki T, Nomoto A, Ogawa A. Crystal structures of β-chalcogeno-α, β-unsaturated chalcogenoesters: Novel intramolecular interaction between the carbonyl oxygen and the chalcogen atom at the β-position. HETEROATOM CHEMISTRY 2011. [DOI: 10.1002/hc.20690] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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128
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Ozaki T, Nomoto A, Kamiya I, Kawakami JI, Ogawa A. Transition-Metal-Catalyzed Cyanochalcogenation of Alkynes with Chalcogenocyanates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2011. [DOI: 10.1246/bcsj.20100187] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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129
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Mitamura T, Iwata K, Nomoto A, Ogawa A. Photochemical intramolecular cyclization of o-alkynylaryl isocyanides with organic dichalcogenides leading to 2,4-bischalcogenated quinolines. Org Biomol Chem 2011; 9:3768-75. [DOI: 10.1039/c0ob01168a] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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130
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Mitamura T, Nomoto A, Sonoda M, Ogawa A. Synthesis of 2-Halogenated Quinolines by Halide-Mediated Intramolecular Cyclization ofo-Alkynylaryl Isocyanides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20100044] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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131
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Kawaguchi SI, Kotani M, Ohe T, Nagata S, Nomoto A, Sonoda M, Ogawa A. Rhodium-Catalyzed Anti-Markovnikov–Type Hydrophosphination of Terminal Alkynes with Diphosphines and Hydrosilanes in the Presence of Oxygen. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426501003773423] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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132
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Kodama S, Yoshida J, Nomoto A, Ueta Y, Yano S, Ueshima M, Ogawa A. Direct conversion of benzylamines to imines via atmospheric oxidation in the presence of VO(Hhpic)2 catalyst. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.02.150] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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133
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Kawaguchi SI, Ohe T, Shirai T, Nomoto A, Sonoda M, Ogawa A. Highly Selective Phosphinotelluration of Terminal Alkynes Using a (Ph2P)2−(PhTe)2 Mixed System upon Visible Light Irradiation: Straightforward Access to 1-Phosphino-2-telluro-alkenes. Organometallics 2009. [DOI: 10.1021/om9008982] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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134
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Nomoto A, Shiino G, Ogawa A. Palladium-catalyzed regioselective introduction of chalcogen moieties into porphyrin bearing an ethynyl group. RESEARCH ON CHEMICAL INTERMEDIATES 2009. [DOI: 10.1007/s11164-009-0087-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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135
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Nomoto A, Kido A, Kakiuchi K, Mitani I, Tatsumi M, Ogawa A. Hydrophilic polymer supported nanoparticles prepared from samarium trichloride and lanthanum trichloride in liquid-phase. RESEARCH ON CHEMICAL INTERMEDIATES 2009. [DOI: 10.1007/s11164-009-0084-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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136
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Kodama S, Nomoto A, Kajitani M, Nishinaka E, Sonoda M, Ogawa A. Transition-metal-catalyzed hydrothiolation of cyclohexylallene with benzenethiol or diphenyl disulfide. J Sulphur Chem 2009. [DOI: 10.1080/17415990902894299] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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137
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Tomisaka Y, Nomoto A, Ogawa A. On the potentially excellent reducing ability of a series of low-valent rare earths induced by photoirradiation. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2008.11.077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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138
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Kawaguchi SI, Shirai T, Ohe T, Nomoto A, Sonoda M, Ogawa A. Highly Regioselective Simultaneous Introduction of Phosphino and Seleno Groups into Unsaturated Bonds by the Novel Combination of (Ph2P)2 and (PhSe)2 upon Photoirradiation. J Org Chem 2009; 74:1751-4. [DOI: 10.1021/jo8020067] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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139
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Li ZF, Tomisaka Y, Nomoto A, Zhang Y, Ogawa A. Photoaccelerated Reductive Coupling of Acid Chlorides with Conjugate Dienes and Styrenes by Use of Neodymium Metal inN,N-Dimethylacetamide. CHEM LETT 2009. [DOI: 10.1246/cl.2009.16] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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140
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Kodama S, Ueta Y, Yoshida J, Nomoto A, Yano S, Ueshima M, Ogawa A. Tetranuclear vanadium complex, (VO)4(hpic)4: a recyclable catalyst for oxidation of benzyl alcohols with molecular oxygen. Dalton Trans 2009:9708-11. [DOI: 10.1039/b913823d] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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141
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Mitamura T, Nomoto A, Sonoda M, Ogawa A. Copper(0)-induced aminocyclopropanation of olefins via deselenation of N,N-disubstituted aromatic selenoamides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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142
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Kawaguchi SI, Nagata S, Nomoto A, Sonoda M, Ogawa A. A Highly Regioselective Palladium-Catalyzed Hydrophosphination of Alkynes Using a Diphosphine−Hydrosilane Binary System. J Org Chem 2008; 73:7928-33. [DOI: 10.1021/jo801267y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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143
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Nishimura T, Saito M, Takano T, Nomoto A, Kohara M, Tsukiyama-Kohara K. Comparative aspects on the role of polypyrimidine tract-binding protein in internal initiation of hepatitis C virus and picornavirus RNAs. Comp Immunol Microbiol Infect Dis 2008; 31:435-48. [PMID: 17706779 DOI: 10.1016/j.cimid.2007.07.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2007] [Indexed: 11/28/2022]
Abstract
We compared the effects of polypyrimidine tract-binding protein (PTB) on hepatitis C virus (HCV genotype IIa), encephalomyocarditis virus (EMCV) and poliovirus internal ribosome entry site (IRES) activities in vitro. It bound strongly to EMCV IRES, but weakly to PV and HCV RNAs. PV IRES showed the strongest dependency to PTB and it showed less than one-tenth of IRES activity after the immuno-depletion of PTB from HeLa S10 lysate with pre-coated anti-PTB IgG beads, comparing to the normal IgG beads-treated S10 lysate. EMCV IRES activity was approximately 40% of that of normal control after PTB depletion. Especially, HCV IRES activity was approximately 95%, and most weekly affected by the depletion of PTB. Repletion of PTB to depleted S10 lysate restored activities of PV and EMCV IRESs. The data suggest that PTB plays an important role in picornaviral IRESs, but not in HCV IRES.
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144
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Shirai T, Kawaguchi SI, Nomoto A, Ogawa A. Photoinduced highly selective thiophosphination of alkynes using a (PhS)2/(Ph2P)2 binary system. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.04.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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145
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Mitamura T, Imanishi Y, Nomoto A, Sonoda M, Ogawa A. Novel Photoinduced Reduction of Conjugate Dienes by the Combination of Benzenethiol and Diphenyl Diselenide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.2443] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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146
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Kodama S, Nishinaka E, Nomoto A, Sonoda M, Ogawa A. A novel palladium(0)-catalyzed addition of diphenyl disulfide to allenes leading to vicinal disulfides and its application to carbonylation with carbon monoxide. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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147
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Li Z, Iida K, Tomisaka Y, Yoshimura A, Hirao T, Nomoto A, Ogawa A. New Entry to the Construction of Si−Si Linkages: Sm/SmI2-Induced Efficient Reductive Coupling of Organochlorosilanes. Organometallics 2007. [DOI: 10.1021/om060745z] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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148
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Tsuchii K, Tsuboi Y, Kawaguchi SI, Takahashi J, Sonoda N, Nomoto A, Ogawa A. Highly Selective Double Chalcogenation of Isocyanides with Disulfide−Diselenide Mixed Systems. J Org Chem 2006; 72:415-23. [PMID: 17221956 DOI: 10.1021/jo061704f] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A highly selective method for introducing thio and seleno groups into a variety of isocyanides has been developed based on the elucidation of the relative reactivities of organic dichalcogenides and chalcogen-centered free radicals. When the reactions of aromatic isocyanides (ArNC) with organic disulfides (R'SSR') and diselenides (R''SeSeR'') are conducted upon irradiation with a tungsten lamp through Pyrex (hnu>300 nm), simultaneous introduction of both thio and seleno groups into the isocyanides takes place to provide the corresponding thioselenation products (R'S-C(=NAr)-SeR'') in good yields with excellent selectivity. In the cases of aliphatic isocyanides (RCN), a novel diselenide-assisted bisthiolation of RNC with diaryl disulfides (Ar'SSAr') proceeds successfully to give the corresponding bisthiolation products (Ar'S-C(=NR)-SAr'), although the same photoirradiated reaction of RNC with diaryl disulfides does not occur in the absence of diselenide. These double chalcogenation reactions are assumed to proceed via the formation of imidoyl radical intermediates by the reaction of isocyanides with relatively reactive thio radicals (compared with seleno radicals). The obtained thioselenation products can be employed as useful precursors for the construction of beta-lactam framework by the formal [2+2] cyclization with ketene equivalents.
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Tomisaka Y, Harato N, Sato M, Nomoto A, Ogawa A. Carbonylation of Organic Halides with Carbon Monoxide Mediated by Samarium Diiodide. Improvement and Mechanistic Investigations. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.1444] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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150
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Kamiya I, Kawakami JI, Yano S, Nomoto A, Ogawa A. A Highly Regioselective Cyanothiolation of Alkynes via Oxidative Addition of Thiocyanates to Tetrakis(triphenylphosphine)palladium(0) Catalyst. Organometallics 2006. [DOI: 10.1021/om0600442] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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