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24 results on '"Matsumoto, Shintaro"'

4. Stratospheric Research of Cosmic Radiation with Handmade Loggers and MATLAB by Elementary and Junior High School Students

Author

KITAHARA, Tatsumasa, ARIMATSU, Raito, IIDA, Akira, ITAKURA, Koutarou, Ootsuka, Yuhi, OKADA, Hajime, OKADA, Yui, KANEKO, Taiyo, KAMAMOTO, Kotaro, KAMIMOTO, Shu, KAMIYAMA, Ryusei, KOUJI, Rui, KOMANO, Umi, SAKATA, Yuuma, SATO, Nari, SATO, Reina, SHIOMI, Hayata, SHIMAMURA, Kazuma, SUMI, Hayato, TAKAYAMA, Daiki, TANAKA, Akane, NISHIZAKI, Ryunosuke, HAYAKAWA, Genki, FUJII, Kouki, FUJITA, Shoudai, HOUSEN, Reo, MATSUMOTO, Shintaro, YAMAMOTO, Kazuho, YAMAMOTO, Kanamu, YAMAMOTO, Shunsei, OKA, Hiroto, NAGATSUKA, Hikaru, and TAKASE, Takumi

Abstract

大気球シンポジウム 2021年度（2021年11月1-2日. オンライン開催), Balloon Symposium 2021 (November 1-2, 2021. Online Meeting), 著者人数: 33名PDF再処理の為、2023年3月24日に差替, 資料番号: SA6000166011, レポート番号: isas21-sbs-011

Published
2021

10. Total Synthesis of Casuarinin

Author

Wakamori, Shinnosuke, primary, Matsumoto, Shintaro, additional, Kusuki, Reina, additional, Ikeuchi, Kazutada, additional, and Yamada, Hidetoshi, additional

Published
2020
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14. Glycosylation by Alkyne Activation of the 2- O -Substituted Propargyl Group in a β-Phenylthioglucoside with a5S1 Conformation.

Author

Ikeuchi, Kazutada, Matsumoto, Shintaro, Ikuta, Daiki, and Yamada, Hidetoshi

Subjects
*GLYCOSYLATION, *ALLYL group, *OLIGOSACCHARIDES, *METHYLENE group
Abstract

Generally, glycosylation reactions activate an anomeric substituent in a glycosyl donor to generate an oxocarbenium ion intermediate. Here we report a novel glycosylation reaction triggered by the activation of a 2-O-substituted propargyl group in a 3,6- O -1,1′-[(ethane-1,2-diyl)bibenzene-2,2′-bis(methylene)]-β-thioglucoside. This reaction proceeds through a cationic Au(I)-mediated intramolecular migration of the anomeric substituent onto the alkyne moiety of the propargyl group, followed by α-attack by the hydroxy group in the glycosyl acceptor on the oxocarbenium ion. The migration of the anomeric group occurs selectively through a 6- exo - dig pathway. The 2-(phenylsulfanyl)prop-2-en-1-yl group produced during the glycosylation is removable under conditions similar to those used for removing an allyl group. This reaction will be developed for further applications in orthogonal oligosaccharide synthesis. [ABSTRACT FROM AUTHOR]

Published
2021
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16. Total Synthesis of Phyllanemblinin B.

Author

Matsumoto, Shintaro, Wakamori, Shinnosuke, Nishii, Kentaro, Tanaka, Takashi, and Yamada, Hidetoshi

Subjects
*OXIDATIVE coupling, *MOIETIES (Chemistry)
Abstract

A total synthesis was developed of phyllanemblinin B, a natural ellagitannin containing 1- O -galloyl and 2,4- O -hexahydroxydiphenoyl groups on a d -glucose scaffold. The use of a μ-hydroxo copper(II) complex resulted in a completely stereoselective oxidative coupling of the galloyl groups on the open-chain glucose moiety and facilitated the first total synthesis of phyllanemblinin B. [ABSTRACT FROM AUTHOR]

Published
2020
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23. Relationships between throwing injuries and functional movement screen in junior high school baseball players

Author

Uchida, Tomoya, primary, Matsumoto, Shintaro, additional, Komatsu, Minoru, additional, Noda, Yuki, additional, Ishida, Miya, additional, Tsukuda, Michiru, additional, Nakayama, Ryota, additional, Takeda, Yuta, additional, Hirakawa, Rieko, additional, Muto, Kohei, additional, Okubo, Satoshi, additional, Furukawa, Hiroyuki, additional, and Fujita, Kenji, additional

Published
2016
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