Výsledky vyhledávání - "Mami Tokunaga"

Multiple Synchronous Sporadic Gastrointestinal Stromal Tumors in the Stomach and Jejunum

Autor: Sohachi Nanjo, Shozo Hojo, Hiroaki Takagi, Shinya Kajiura, Saito Kobayashi, Haruka Fujinami, Mami Tokunaga, Tomoyuki Okumura, Hiroki Yoshita, Tohru Watanabe, Hiroshi Mihara, Momoko Akashi, Yoko Ishii, Toshiro Sugiyama, Takayuki Ando, Isaya Hashimoto

Publikováno v: Internal Medicine

A 77-year-old patient was admitted to our hospital for the further examination of melena. A computed tomography scan detected two submucosal tumors (SMTs) in the stomach and jejunum. Double-balloon endoscopy revealed the presence of a delle on the je

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c472c4bf70bcda08534f7f12d08353d
https://doi.org/10.2169/internalmedicine.0229-17

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Hydrophobic vitamin B12. Part 18. Preparation of a sol–gel modified electrode trapped with a vitamin B12derivative and its photoelectrochemical reactivity

Autor: Yoshio Hisaeda, Mami Tokunaga, Jun-ichi Kikuchi, Kiyofumi Katagiri, Aki Nakazato, Katsuhiko Ariga, Hisashi Shimakoshi

Publikováno v: Dalton Trans.. :2308-2312

A vitamin B12 derivative, heptapropyl cobyrinate perchlorate, was readily trapped onto an indium tin oxide (ITO) electrode by a sol–gel reaction. The complex was physically retained in a silica gel film which is formed on an ITO electrode. The thic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a6c5efe9a43a5fe2f05fe14f3cee7934
https://doi.org/10.1039/b212863b

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Hydrophobic vitamin B12. Part 19: electroorganic reaction of DDT mediated by hydrophobic vitamin B12

Autor: Hisashi, Shimakoshi, Mami, Tokunaga, Yoshio, Hisaeda

Publikováno v: Dalton transactions (Cambridge, England : 2003). (6)

The controlled-potential electrolysis of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane (DDT) was carried out at -1.4 V vs. Ag-AgCl in the presence of a hydrophobic vitamin B12, heptamethyl cobyrinate perchlorate. DDT was dechlorinated to form 1,1-bis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::b9f2e2e3e3e42fa503937ed67cb904f1
https://pubmed.ncbi.nlm.nih.gov/15252472

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Preparation and electrochemical behaviour of hydrophobic vitamin B(12) covalently immobilized onto platinum electrode

Autor: Yoshio Hisaeda, Keita Kuroiwa, Hisashi Shimakoshi, Mami Tokunaga, Nobuo Kimizuka

Publikováno v: Chemical communications (Cambridge, England). (1)

Hydrophobic vitamin B(12) was covalently immobilized onto a platinum electrode surface, and the immobilized complex exhibits Co(ii)/Co(i) redox couple and in situ the Co(i) species reacts with phenethyl bromide to form styrene under irradiation with

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80d8e86c9d686f8f3468191306935308
https://pubmed.ncbi.nlm.nih.gov/14737327

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(Z)-2,3-Dichloro-1,1,4,4-tetrakis(4-chlorophenyl)but-2-ene

Autor: Mami Tokunaga, Hisashi Shimakoshi, Yoshio Hisaeda, Isao Aritome

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 61:o2063-o2064

The title compound, C28H18Cl6, was obtained by the electrolysis of 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethane (DDT) in the presence of a catalytic amount of the cobalamin derivative heptamethyl cobyrinate perchlorate. The alkene group of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::740e045864289258d1c9fe7807d7400f
https://doi.org/10.1107/s160053680501768x

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(E)-2,3-Dichloro-1,1,4,4-tetrakis(4-chlorophenyl)but-2-ene

Autor: Hisashi Shimakoshi, Yoshio Hisaeda, Mami Tokunaga, Isao Aritome

Publikováno v: Acta Crystallographica Section E Structure Reports Online. 60:o1470-o1471

The title compound, C28H18Cl6, was obtained by the electrolysis of 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethane (DDT) in the presence of a catalytic amount of a cobalamin derivative. The molecule has a centre of symmetry, and the alkene moie

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6498dbd96947ed72c3ddb491215443fc
https://doi.org/10.1107/s1600536804018537

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Photochemical dechlorination of DDT catalyzed by a hydrophobic vitamin B12 and a photosensitizer under irradiation with visible light

Autor: Hisashi Shimakoshi, Mami Tokunaga, Yoshio Hisaeda, Tatsushi Baba

Publikováno v: Chemical Communications. :1806

Dechlorination of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane (DDT) was catalyzed by a hydrophobic vitamin B(12), heptamethyl cobyrinate perchlorate, with a visible light irradiation system containing a [Ru(ii)(bpy)(3)]Cl(2) photosensitizer, and th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb7b13452271f8e8a54c76a82fc8e5d4
https://doi.org/10.1039/b406400c

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Hydrophobic vitamin B12. Part 19:For Part 18 see ref. 22. Electroorganic reaction of DDT mediated by hydrophobic vitamin B12

Autor: Yoshio Hisaeda, Hisashi Shimakoshi, Mami Tokunaga

Publikováno v: Dalton Transactions. :878

The controlled-potential electrolysis of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethane (DDT) was carried out at −1.4 V vs. Ag–AgCl in the presence of a hydrophobic vitamin B12, heptamethyl cobyrinate perchlorate. DDT was dechlorinated to form 1,1

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e40a5163126052fc671aaefc0d29ec3
https://doi.org/10.1039/b315170k

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