Zobrazeno 1 - 10 of 11 pro vyhledávání: '"Chieko Motokawa"'
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One step synthesis of heteropolycycles, indolizinoquinolizines by the reaction of either pyridylketene dithioacetal with pyridinium salt or pyridiniumketene dithioacetal with pyridylacetonitrile
Autor: Chieko Motokawa, Shizuki Ide, Yoshiro Matsuda, Yasushige Chiyomaru, Kazuki Furuno, Takahiro Itou
Publikováno v: Tetrahedron. 49:9947-9954
The heteropolycycles, indolizinoquinolizines (7, 8, 20) were obtained by the reaction of either pyridylketene dithioacetal (2) with two molar equivalents of pyridinium salts (4a–c) or pyridiniumketene dithioacetal (19) with two molar equivalents of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb03f6d91dd8a4c8e60438f6c3c11e4e
https://doi.org/10.1016/s0040-4020(01)80192-7
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4
ChemInform Abstract: One-Step Synthesis of Heteropolycycles, Indolizinoquinolizines by the Reaction of Either Pyridylketene Dithioacetal with Pyridinium Salt or Pyridiniumketene Dithioacetal with Pyridylacetonitrile
Autor: Yoshiro Matsuda, Chieko Motokawa, Kazuki Furuno, Takahiro Itou, Yasushige Chiyomaru, Shizuki Ide
Publikováno v: ChemInform. 25
The heteropolycycles, indolizinoquinolizines (7, 8, 20) were obtained by the reaction of either pyridylketene dithioacetal (2) with two molar equivalents of pyridinium salts (4a–c) or pyridiniumketene dithioacetal (19) with two molar equivalents of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d077ba3f0911128dd9f288af163a38ea
https://doi.org/10.1002/chin.199406165
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5
ChemInform Abstract: Thermal Reaction of Imidazolium N-Vinylimino Ylides: Formation of Mesomeric Betaines, Imidazopyridaziniumides, via Back-Donated 1,6- Cyclization
Autor: Kimitoshi Takahashi, Makoto Yamashita, Shizuki Ide, Yoshiro Matsuda, Takahiro Itou, Chieko Motokawa, Yasushige Chiyomaru
Publikováno v: ChemInform. 25
The reaction of N-aminoimidazolium salts (4, 5) with polarized olefins (2a-d, 3a, b) in the presence of K2CO3 in EtOH gave the corresponding imidazolium N-vinylimino ylides (6, 7). Thermolyses of the N-vinylimino ylides (6c-f, 7a-c) afforded mesomeri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f6c91b935b509277783f35e98a3dbef7
https://doi.org/10.1002/chin.199443179
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8
[Synthesis of thiazolo[3,2-a]pyridine derivatives and their reactions]
Autor: Yoshiro MATSUDA, Hiroshi MATSUMOTO, Shizuki IDE, Kazuki FURUNO, Katsura TORISU, Takahiro ITOU, Chieko MOTOKAWA
Publikováno v: Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan. 113(1)
By the reaction of 2-benzoylmethylimidazoles (1a, b) with polarized olefins (2, 3) in the presence of K2CO3, the corresponding imidazo[1,2-a]pyridine derivatives (4, 5) were obtained. Methylsulfinylimidazopyridine derivative (7) obtained by the react
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7d9ffa4df4387b9ab6423e4a940b897
https://pubmed.ncbi.nlm.nih.gov/8463955
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10
Studies on Pyridinium N-Ylides: One Step Synthesis of Heteropolycycles, Indolizinoquinolizines
Autor: Shizuki Ide, Kazuki Furuno, Makoto Yamashita, Takahiro Itou, Kimitoshi Takahashi, Chieko Motokawa, K. Torisu, Yoshiro Matsuda
Publikováno v: HETEROCYCLES. 34:899
The heteropolycyles, indolizinoquinolines were obtained by the reaction of pyridylketene dithioacetal with two molar equivalents of pyridinium salts
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1932655fefb8064ab8f771d18245a3fd
https://doi.org/10.3987/com-92-5992
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