Výsledky vyhledávání - "Atsuto Izumiseki"

Stereodivergent Synthesis of 1,3-Dienes via Protodeboronation of Homoallenylboronic Esters

Autor: Ryota Sakamoto, Minami Odagi, Atsuto Izumiseki, Kaname Konuki, Kazuo Nagasawa

Publikováno v: The Journal of Organic Chemistry. 87:8084-8098

Vinylboronic esters and allylboronic esters are well known to afford olefins by protodeboronation, and therefore homoallenylboronic esters should be similarly available as precursors for 1,3-dienes, but this strategy has not been well explored due to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f0f976403a4256da3d2b4077af21d9e
https://doi.org/10.1021/acs.joc.2c00744

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Akademický článek

Correlations between Substituent Effects and Catalytic Activities: A Quantitative Approach for the Development of Halogen-Bonding-Driven Anion-Binding Catalysts.

Autor: Norie Momiyama^1,2 momiyama@ims.ac.jp, Atsuto Izumiseki^1,2, Naoya Ohtsuka², Toshiyasu Suzuki¹

Publikováno v: ChemPlusChem. Jun2021, Vol. 86 Issue 6, p913-919. 7p.

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Quasi-Homoepitaxial Junction of Organic Semiconductors: A Structurally Seamless but Electronically Abrupt Interface between Rubrene and Bis(trifluoromethyl)dimethylrubrene

Autor: Atsuto Izumiseki, Naoya Ohtsuka, Tomoyuki Koganezawa, Ryohei Tsuruta, Norie Momiyama, Yuki Nakanishi, Kana Takahashi, Kazuhiko Mase, Masahiro Hiramoto, Yuki Gunjo, Riku Takeuchi, Yasuo Nakayama, Seiichiro Izawa

Publikováno v: The Journal of Physical Chemistry Letters

Single-crystalline organic semiconductors exhibiting band transport have opened new possibilities for the utilization of efficient charge carrier conduction in organic electronic devices. The epitaxial growth of molecular materials is a promising rou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a65133d754413836a2198b1dd92487d7
https://doi.org/10.1021/acs.jpclett.1c03094

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Organozinc-aided, HMPA-free, stoichiometric three-component coupling for the general synthesis of prostaglandins and stable prostacyclin analogs with biological significance

Autor: Atsuto Izumiseki, Hiroko Koyama, Masaaki Suzuki

Publikováno v: Tetrahedron Letters. 60:1467-1470

A three-component coupling procedure was developed to construct the entire prostaglandin (PG) skeleton under HMPA-free and stoichiometric conditions via a combination of dimethylzinc-aided conjugate addition of an ω-side-chain vinyllithium with (R)-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbd6c64e539a9f93fea5e99d4dd2fc98
https://doi.org/10.1016/j.tetlet.2019.04.037

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Correlations between Substituent Effects and Catalytic Activities: A Quantitative Approach for the Development of Halogen-Bonding-Driven Anion-Binding Catalysts

Autor: Naoya Ohtsuka, Norie Momiyama, Atsuto Izumiseki, Toshiyasu Suzuki

Publikováno v: ChemPlusChem. 86(6)

A quantitative approach for the development of halogen-bonding-driven anion-binding catalysts was studied using 4-substituted perfluorinated iodobenzene. 19 F NMR titrations were used to determine the binding constants K for chloride, and their catal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bb3cff77baa1d6670510ec4931ca324
https://pubmed.ncbi.nlm.nih.gov/34145787

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Selective Michael Reaction Controlled by Supersilyl Protecting Group

Autor: Hisashi Yamamoto, Atsuto Izumiseki

Publikováno v: Angewandte Chemie. 127:8821-8823

Selective Michael reaction of organolithium reagents to supersilyl methacrylate is reported. The method was able to control a single and double Michael addition. The successful termination of the process using the supersilyl protecting group allows f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c34d0e0dff0f90a2d9feec95e430267
https://doi.org/10.1002/ange.201503574

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Molecular Design of a Chiral Brønsted Acid with Two Different Acidic Sites: Regio-, Diastereo-, and Enantioselective Hetero-Diels-Alder Reaction of Azopyridinecarboxylate with Amidodienes Catalyzed by Chiral Carboxylic Acid-Monophosphoric Acid

Autor: Hirofumi Noda, Masahiro Yamanaka, Masahiro Terada, Atsuto Izumiseki, Fuyuki Egawa, Hiroaki Adachi, Norie Momiyama, Kosuke Funayama, Katsunori Yamanishi, Hideaki Tabuse, Shino Okada, Takeshi Fujinami

Publikováno v: Journal of the American Chemical Society. 138(35)

A chiral Bronsted acid containing two different acidic sites, chiral carboxylic acid–monophosphoric acid 1a, was designed to be a new and effective concept in catalytic asymmetric hetero-Diels–Alder reactions of azopyridinecarboxylate with amidod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1383f9f643c8ce893e693744f218a172
https://pubmed.ncbi.nlm.nih.gov/27529134

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ChemInform Abstract: Boron Tribromide-Assisted Chiral Phosphoric Acid Catalyst for a Highly Enantioselective Diels-Alder Reaction of 1,2-Dihydropyridines

Autor: Kazuaki Ishihara, Manabu Hatano, Matsujiro Akakura, Atsuto Izumiseki, Yuta Goto

Publikováno v: ChemInform. 47

First, catalysts (Ia) and (Ib) are established as the efficient ones for the cycloaddition of cyclic dienes (II) and (V) with acroleins (III) and acrylate (VII) under slightly different conditions.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f4ecf27f8cfe77804697c8bec9619c35
https://doi.org/10.1002/chin.201615164

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