Search Results - "Hata, Takeshi"

Copper-Catalyzed 1,2-Double Amination of 1-Halo-1-alkynes. Concise Synthesis of Protected Tetrahydropyrazines and Related Heterocyclic Compounds by Fukudome, Yasuhiro, Naito, Hiroyuki, Hata, Takeshi, Urabe, Hirokazu

“…Reaction of N,N‘-di(p-toluenesulfonyl)-1,2-diamine, 1-bromo-1-alkyne, K3PO4, and a catalytic amount of CuI in hot DMF afforded…”
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A mutation in the Cc.arp9 gene encoding a putative actin-related protein causes defects in fruiting initiation and asexual development in the agaricomycete Coprinopsis cinerea by Nakazawa, Takehito, Ando, Yuki, Hata, Takeshi, Nakahori, Kiyoshi

“…Agaricomycetes exhibit a remarkable morphological differentiation from vegetative mycelia to huge fruiting bodies. To investigate the molecular mechanism…”
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Rh-catalyzed intramolecular cyclization of 1-sulfonyl-1,2,3-triazole and sulfinate. Concise preparation of sulfonylated unsaturated piperidines by Furukawa, Ayana, Hata, Takeshi, Shigeta, Masayuki, Urabe, Hirokazu

“…[Display omitted] •Strictly ordered scission and formation of a few bonds are attained in one flask.•Traditional S and new Rh chemistries elegantly…”
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Rh-Catalyzed Isomerization and Intramolecular Redox Reaction of Alkynyl Ethers Affording Dihydropyrans and Ketoolefins by Shikanai, Daisuke, Murase, Hirohiko, Hata, Takeshi, Urabe, Hirokazu

“…When arylmethyl 4-(sulfonyl)-3-butynyl ether and a catalytic amount of Rh2(tfa)4 (tfa = CF3CO2−) were heated in toluene,…”
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Rhodium-Catalyzed Intramolecular Hydroarylation of 1-Halo-1-alkynes: Regioselective Synthesis of Semihydrogenated Aromatic Heterocycles by Murase, Hirohiko, Senda, Kousuke, Senoo, Masato, Hata, Takeshi, Urabe, Hirokazu

“…The regioselective intramolecular hydroarylation of (3‐halo‐2‐propynyl)anilines, (3‐halo‐2‐propynyl) aryl ethers, or (4‐halo‐3‐butynyl) aryl ethers was…”
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Nucleophilic Addition of Sulfonamides to Bromoacetylenes: Facile Preparation of Pyrroles by Yamagishi, Masahito, Nishigai, Ken, Hata, Takeshi, Urabe, Hirokazu

“…Nucleophilic addition of sulfonamides to 1-bromo-1-alkynes provided (Z)-N-(1-bromo-1-alken-2-yl)-p-toluenesulfonamides in good yield and in a highly regio- and…”
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Facile Preparation of Indoles and 1,2-Benzothiazine 1,1-Dioxides: Nucleophilic Addition of Sulfonamides to Bromoacetylenes and Subsequent Palladium-Catalyzed Cyclization by Yamagishi, Masahito, Nishigai, Ken, Ishii, Azusa, Hata, Takeshi, Urabe, Hirokazu

“…Bromine as a double agent: The bromine atom in 1‐bromo‐1‐alkynes works as an electron‐withdrawing group to effect the nucleophilic addition of sulfonamides. It…”
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Synthesis of tert-Butyl Peroxyacetals from Benzyl, Allyl, or Propargyl Ethers via Iron-Promoted CH Bond Functionalization by Iwata, Satoshi, Hata, Takeshi, Urabe, Hirokazu

“…When benzyl, allyl, and propargyl ethers were treated with tert‐butyl hydroperoxide and a catalytic amount of iron(III) acetylacetonate, tert‐butyl…”
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Additive-Free Nucleophilic Addition of Imidazolines and Imidazoles to Haloacetylenes by Yamagishi, Masahito, Okazaki, Jun, Nishigai, Ken, Hata, Takeshi, Urabe, Hirokazu

“…Nucleophilic addition of imidazolines to 1-halo-1-alkynes takes place by simple heating in DMF without any additives to give…”
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Iron-Catalyzed Synthesis of Allenes from 2-Alken-4-ynoates and Grignard Reagents by Hata, Takeshi, Iwata, Satoshi, Seto, Shumpei, Urabe, Hirokazu

“…Treatment of 2‐alken‐4‐ynoates with methyl‐ or aryl‐Grignard reagents and iron(II) chloride (10 mol%) afforded 5‐methyl‐ or 5‐aryl‐3,4‐alkadienoates in good…”
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Mutation analysis of 2009 pandemic influenza A(H1N1) viruses collected in Japan during the peak phase of the pandemic by Morlighem, Jean-Étienne, Aoki, Shintaro, Kishima, Mami, Hanami, Mitsue, Ogawa, Chihiro, Jalloh, Amadu, Takahashi, Yukari, Kawai, Yuki, Saga, Satomi, Hayashi, Eiji, Ban, Toshiaki, Izumi, Shinyu, Wada, Akira, Mano, Masayuki, Fukunaga, Megumu, Kijima, Yoshiyuki, Shiomi, Masashi, Inoue, Kaoru, Hata, Takeshi, Koretsune, Yukihiro, Kudo, Koichiro, Himeno, Yuji, Hirai, Aizan, Takahashi, Kazuo, Sakai-Tagawa, Yuko, Iwatsuki-Horimoto, Kiyoko, Kawaoka, Yoshihiro, Hayashizaki, Yoshihide, Ishikawa, Toshihisa

“…Pandemic influenza A(H1N1) virus infection quickly circulated worldwide in 2009. In Japan, the first case was reported in May 2009, one month after its…”
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Aryl(sulfonyl)amino Group: A Convenient and Stable Yet Activated Modification of Amino Group for Its Intramolecular Displacement by Kato, Yuzo, Yen, Dinh Hoang, Fukudome, Yasuhiro, Hata, Takeshi, Urabe, Hirokazu

“…Aryl(sulfonyl)amino groups, readily derived from sulfonyl- or arylamines by standard methods as well as the recently introduced methods of sulfonylation and…”
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Geminal Difunctionalization of Alkenylidene-Type Carbenoids by Using Interelement Compounds by Hata, Takeshi, Kitagawa, Hirotaka, Masai, Hirokazu, Kurahashi, Takuya, Shimizu, Masaki, Hiyama, Tamejiro

“…A 1,2‐migration of a boryl or silyl group with inversion of configuration occurs in the reaction of alkylidene‐type lithium carbenoids with diboron or…”
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Facile Preparation of 1,2-Dihydroisoquinolines from N-Benzylsulfonamides and Bromoacetylenes by Urabe, Hirokazu, Yamagishi, Masahito, Ishii, Azusa, Hata, Takeshi

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Rh-catalyzed intramolecular debenzylative cyclization of amines. Butyrolactams from benzylamines having a chloroacetylene moiety by Oh, Yun Taek, Senda, Kousuke, Hata, Takeshi, Urabe, Hirokazu

“…When benzylamines having a chloroacetylene moiety were heated in wet toluene with a catalytic amount of rhodium trifluoroacetate dimer, intramolecular…”
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Facile preparation of N-protected 2-alkylidene-1,3-imidazolidines by Naito, Hiroyuki, Hata, Takeshi, Urabe, Hirokazu

“…Stereoselective preparation of unsymmetrically protected 2-alkylidene-1,3-imidazolidines was achieved by the reaction of N,N′-protected ethylenediamine,…”
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An experimental and modeling investigation of particle production by spray pyrolysis using a laminar flow aerosol reactor by Lenggoro, I. Wuled, Hata, Takeshi, Iskandar, Ferry, Lunden, Melissa M., Okuyama, Kikuo

“…The influence of operating parameters on the morphology of particles prepared by spray pyrolysis was investigated using a temperature-graded laminar flow…”
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Asymmetric Synthesis of Axially Chiral Benzamides and Anilides by Enantiotopic Lithiation of Prochiral Arene Chromium Complexes by Koide, Hiroshige, Hata, Takeshi, Uemura, Motokazu

“…Axially chiral benzamides and anilides were prepared by enantiotopic lithiation at the distinguished benzylic methyl of prochiral tricarbonylchromium complexes…”
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New, General, and Stereoselective Synthesis of CF3-Containing Tri- and Tetrasubstituted Oxiranes and Tetrasubstituted Alkenes by Shimizu, Masaki, Fujimoto, Takuya, Minezaki, Hiroshi, Hata, Takeshi, Hiyama, Tamejiro

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A grid-based runoff generation and flow routing model for the Upper Blue Nile basin by MISHRA, ANIL, HATA, TAKESHI

“…A simple water balance model was used to generate monthly water surplus for 0.5° grid cells of the Upper Blue Nile basin. An application of a spatially…”
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