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Silane catecholates: versatile tools for self-assembled dynamic covalent bond chemistry

Autor: Yoshiteru Kawakami, Singo Nikaido, Tomoki Kawara, Kazuhiko Okamoto, Tsuyoshi Ogishima, Shota Yamauchi, Daiki Souma, Yoshio Kabe, Ren-Hua Jin

Publikováno v: Chemical Communications. 55:6066-6069

Shape-persistent macrocycles and 3D nanocages have been prepared in one-pot under MeCN-promoted dynamic covalent bond conditions starting from silane catecholates, whose structures were confirmed by X-ray crystallography. Cation-exchange reactions of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::687bfa1f77c8c7f853f18c53b4c55c20
https://doi.org/10.1039/c9cc02103e

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Regioselective Hydroamination of Open-cage Ketolactam Derivatives of C60 with Phenylhydrazine and Water Encapsulation

Autor: Takuya Ishida, Teruhiko Tanaka, Jun-Chul Choi, Kohei Morimoto, Takahashi Toshikazu, Norihisa Fukaya, Yoshio Kabe

Publikováno v: Chemistry Letters. 47:503-506

Open-cage ketolactam fullerenes undergo regioselective hydroamination with phenylhydrazine to afford adducts with 1:1 and 1:2 stoichiometry. N-methoxyethoxymethyl (MEM) substitution gave only the 1:1 adduct, the structure of which was unequivocally e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9142aca0d9ff37c2a8a11ef17b819b38
https://doi.org/10.1246/cl.171198

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Organic superbase-induced chemiluminescent decomposition of a hydroxyaryl-substituted dioxetane: Unique effect of a bifunctional guanidine base on the chemiluminescence profile of a bicyclic dioxetane bearing a 4-(benzoxazol-2-yl)-3,5-dihydroxyphenyl moiety

Autor: Ayu Wakatsuki, Hisako K. Ijuin, Yoshio Kabe, Nobuko Watanabe, Masakatsu Matsumoto

Publikováno v: Tetrahedron Letters. 59:971-977

Organic superbases represented by TBD (1,5,7-triazabicyclo[4.4.0]dec-5-ene) effectively induced the decomposition of hydroxyaryl-substituted dioxetanes in acetonitrile to give bright light. The color of the chemiluminescence from a dioxetane bearing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c21fdff5f27ee297d25517834ac085f6
https://doi.org/10.1016/j.tetlet.2018.01.045

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Direct benzyne-C60 addition does not generate a [5,6] open fulleroid

Autor: Ryo Mizunuma, Yoshihiro Nakamura, Yoshio Kabe, Yuki Kamijima, Teruhiko Tanaka

Publikováno v: Tetrahedron. 74:544-548

Recent reports describe the different products resulting from the reaction of C60 with benzyne generated from anthranilic acid derivatives and isoamyl nitrate in the presence and absence of triethylamine. Reinvestigation here via 1H, 13C, HMBC NMR an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de920968b882dcc7b386c5a240602bfb
https://doi.org/10.1016/j.tet.2017.12.023

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Regioselective Diels–Alder reaction to open-cage ketolactam derivatives of C60

Autor: Teruhiko Tanaka, Yoshio Kabe, Yoshiki Sugiyama, Norihisa Fukaya, Jun-Chul Choi, Ryouhei Sawai, Ryuichi Nojiri, Takahashi Toshikazu

Publikováno v: Organic & Biomolecular Chemistry. 15:6136-6146

Open-cage ketolactam fullerenes reacted with dienes on the rim of the orifice both regio- and stereoselectively. Unequivocal evidence for the structure of the Diels–Alder adduct was provided by 2D INADEQUATE 13C NMR studies on 13C enriched material

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80145d6e71e57e5ab1681329089a2394
https://doi.org/10.1039/c7ob01347g

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Cyclic trimer of tripodal trisilanol with new hydrogen bonding motif

Autor: Eitaka Suzuki, Yuya Furukawa, Takuya Horikawa, Akihiko Yanase, Yasuhiro Nagata, Yoshio Kabe, Yoshiteru Kawakami, Marina Fukawa

Publikováno v: Journal of Organometallic Chemistry. :265-272

Tripodal trisilanols tris[4-(diisopropylhydroxysilyl)phenyl]-phenylsilane and -methylsilane (3a and 3b) as well as 1,3,5-tris(diisopropylhydroxysilylmethyl)-2,4,6-triethylbenzene (3c) were synthesized by treatment of the corresponding tribromide with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64f1cb643ef8cbd9fc2e09dd0d9a46d8
https://doi.org/10.1016/j.jorganchem.2015.09.041

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CpCo(I)- and Cp*Ru(II)Cl-catalyzed [2+2+2] cycloadditions of siladiynes and alkynes: A combined experimental and theoretical study

Autor: Takae Takeuchi, Yoshiteru Kawakami, Kouta Oumiya, Genki Kitazawa, Keisuke Sato, Toru Amakasu, Yusuke Ohta, Hidefumi Sato, Yoshio Kabe

Publikováno v: Journal of Organometallic Chemistry. 905:121006

Benzo-2-silaindanes (3a-g) and benzo-2,3-tetralines (4a-g) were synthesized by CpCo(CO)2 and Cp*Ru(cod)Cl catalyzed cyclotrimerization of siladiynes (1-2a,b) with alkynes R1C≡CR2 (R1, R2 = H, CO2Me, Ph, Ts). X-ray analyses of 3f and 4g confirmed th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1cbda3d715122eb3117bbbb0c02f923
https://doi.org/10.1016/j.jorganchem.2019.121006

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Hydrogen-Bonding 3D Networks by Polyhedral Organosilanols: Selective Inclusion of Hydrocarbons in Open Frameworks

Autor: Masayoshi Shirasaka, Yoshiteru Kawakami, Tatsuya Nakai, Yoshio Kabe, Takashi Wakuda, Yoshinobu Sakuma

Publikováno v: Organometallics. 29:3281-3288

Tetrahedral organosilanols E[C6H4Si(i-Pr)2OH]4 (E = C, 2a; E = Si, 2b) as well as octahedral organosilanols Si8O12(CH═CHC6H4SiR2OH)8 (R = i-Pr, 5a; R = Ph, 5b) have been derived from tetraphenylmethane and -silane (1a,b) and octavinyloctasilsesquio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::64cc5c6018d39bd050c9c89184f8437b
https://doi.org/10.1021/om901120m

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