Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Koichi Mitsudo"'
Autor:
Koichi Mitsudo, Atsushi Osaki, Haruka Inoue, Eisuke Sato, Naoki Shida, Mahito Atobe, Seiji Suga
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1560-1571 (2024)
An electrocatalytic hydrogenation of cyanoarenes, nitroarenes, quinolines, and pyridines using a proton-exchange membrane (PEM) reactor was developed. Cyanoarenes were then reduced to the corresponding benzylamines at room temperature in the presence
Externí odkaz:
https://doaj.org/article/4cd9417810cc431595e078ff2a690e6c
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 18, Iss 1, Pp 1055-1061 (2022)
Electrochemical hydrogenation of enones using a proton-exchange membrane reactor is described. The reduction of enones proceeded smoothly under mild conditions to afford ketones or alcohols. The reaction occurred chemoselectively with the use of diff
Externí odkaz:
https://doaj.org/article/d9a4210377534883a1ce32eba14b00f2
Publikováno v:
Electrochemistry, Vol 91, Iss 11, Pp 112005-112005 (2023)
Cathodic reduction efficiently cleaved N–O bonds. The simple cathodic reduction of Weinreb amides in a divided cell afforded the corresponding amide in good yields. Cyclic voltammetry experiments and density functional theory calculations suggested
Externí odkaz:
https://doaj.org/article/673938590833496fa996161aa0b4acab
Publikováno v:
Electrochemistry, Vol 91, Iss 11, Pp 112007-112007 (2023)
The electrochemical synthesis of dibenzothiophene S,S-dioxides was achieved by the anodic oxidation of biaryl sulfonyl hydrazides. The use of Bu4NOTf as the electrolyte in HFIP/CH3NO2 (15 : 1) is essential. Several biaryl sulfonyl hydrazides followed
Externí odkaz:
https://doaj.org/article/74b9088d38d64debb50c67ab4ab5190a
Autor:
Masafumi Yano, Yukiyasu Kashiwagi, Yoshinori Inada, Yuki Hayashi, Koichi Mitsudo, Koji Kubono
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 76, Iss 10, Pp 1649-1652 (2020)
In the title molecule, C48H33N, the central N atom shows no pyramidalization, so that the N atom and the three C atoms bound to the N atom lie almost in the same plane. The three para-phenylene rings bonded to the N atom are in a propeller form. All
Externí odkaz:
https://doaj.org/article/bfdf7e466ebc4db79a1faaeade6483be
Autor:
Koichi Mitsudo, Junya Yamamoto, Tomoya Akagi, Atsuhiro Yamashita, Masahiro Haisa, Kazuki Yoshioka, Hiroki Mandai, Koji Ueoka, Christian Hempel, Jun-ichi Yoshida, Seiji Suga
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 14, Iss 1, Pp 1192-1202 (2018)
In this study, six-membered N-acyliminium ions were generated by the “indirect cation pool” method and reacted with several nucleophiles. These reactions afforded disubstituted piperidine derivatives with high diastereoselectivities and good to e
Externí odkaz:
https://doaj.org/article/0bac204719794129b1b36c9fe48e2457
Autor:
Hiroki Mandai, Kazuki Fujii, Hiroshi Yasuhara, Kenko Abe, Koichi Mitsudo, Toshinobu Korenaga, Seiji Suga
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-11 (2016)
Nucleophilic catalysts are widely used for acyl transfer reactions, but chiral variants can be difficult to design or synthesise. Here, the authors report catalysts with chirality imparted from a binaphtyl moiety with tert-alcohol unit that show both
Externí odkaz:
https://doaj.org/article/5e7f35966c0a4cdb94c85844b7113628
Publikováno v:
Molecules, Vol 16, Iss 10, Pp 8815-8832 (2011)
Diastereoselective Ugi reactions of DMAP-based aldehydes with α-amino acids and tert-butyl isocyanide were examined. The reactions of 4-(dimethylamino)-2-pyridine-carboxaldehyde with various α-amino acids afforded 2-substituted DMAP derivatives wit
Externí odkaz:
https://doaj.org/article/6c2787cf35724fe38a24e38911046982
Publikováno v:
Chemistry Letters; Aug2024, Vol. 53 Issue 8, p1-11, 11p
Publikováno v:
Bulletin of the Chemical Society of Japan; Apr2024, Vol. 97 Issue 4, p1-5, 5p