Zobrazeno 1 - 10 of 153 pro vyhledávání: '"Saburo Inokawa"'
1
X-Ray crystal and molecular structure of 1,2,3,5-tetra-O-acetyl-4-deoxy-4-C-[(S)-ethylphosphinyl]-α-d-ribofuranose, and conformations of aldopentofuranose analogs having phosphorus in the hemiacetal ring
Autor: Peter Luger, Eveline Müller, Saburo Inokawa, Hiroshi Yamamoto
Publikováno v: Carbohydrate Research. 145:25-35
X-Ray crystallographic analysis was performed on the compound to which had been assigned the structure 1,2,3,5-tetra- O -acetyl-4-deoxy-4- C -[( S )-ethylphosphinyl]-α- d -ribofuranose. The results showed that the compound has the proposed configura
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29ef58f1ffe9b4c49ae5d6e83ba186fd
https://doi.org/10.1016/s0008-6215(00)90409-9
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2
Synthesis of 1,2,4-tri-O-acetyl-3,6-di-O-benzyl-5-deoxy-5-C-[(S)-phenylphosphinyl]-β-d-glucopyranose: The first gluco type of hexopyranose derivative having phosphorus in the hemiacetal ring
Autor: T.T Nakashima, Saburo Inokawa, Margaret-Ann Armour, Chikako Hosoyamada, Hiroshi Yamamoto, Heizan Kawamoto, Mitsuji Yamashita
Publikováno v: Carbohydrate Research. 102:159-167
Oxidation of 3,6-di- O -benzyl-1,2- O -isopropylidene-α- d -glucofuranose with pyridinium chlorochromate in the presence of molecular sieves, followed by conversion into the p -tolylsulfonylhydrazone, addition of methyl phenylphosphinate, and reduct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::556ab2b60f8b06a67ec1b8665e5bbb6e
https://doi.org/10.1016/s0008-6215(00)88059-3
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3
α-Thiocarbonyl-stabilized Triphenylphosphonium Ylides: Preparation, Structure, and Alkylation Reactions
Autor: Hironori Matsuura, Hiroshi Yoshida, Tsuyoshi Ogata, Saburo Inokawa
Publikováno v: Bulletin of the Chemical Society of Japan. 48:2907-2910
A number of α-thiocarbonyl-stabilized ylides II were prepared in moderate yields, and their alkylation reactions were studied. II(H, MeO), II(H, EtO), II(H, i-PrO), and II(H,H) were mixtures of cis and trans isomers, and the IIcis⁄IIItrans ratios
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::00f723e598adb56d412ecc590bd24c1b
https://doi.org/10.1246/bcsj.48.2907
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4
The Thermal Decomposition ofN-Thiocarbonyl Diphenylsulfimides
Autor: Tsuyoshi Ogata, Saburo Inokawa, Hitoshi Taketani, Hiroshi Yoshida
Publikováno v: Bulletin of the Chemical Society of Japan. 49:3124-3127
N-Thiocarbonyl diphenylsulfimides, Ia–i (R=Ph, p- and m-MeC6H4, p- and m-MeOC6H4, MeO, EtO, MeNH, and Me2N), were prepared, and their thermal decomposition were studied. At 70 °C, Ia–h decomposed easily to give nitriles (or their derivatives), t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c2750954903652c79d4bd75a52665e6
https://doi.org/10.1246/bcsj.49.3124
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7
Nucleophilic Substitution with Phosphide Anions Prepared by an Action of Sodium Dihydridobis(2-methoxyethanolato)aluminate on Phosphorus Compounds
Autor: Saburo Inokawa, Hiroaki Yamashita, Mitsuji Yamashita, Kaname Nakatani, Tatsuo Oshikawa, Manabu Yamada, Nobuyoshi Suzuki, Yukio Soeda
Publikováno v: Bulletin of the Chemical Society of Japan. 56:219-222
Phosphide anions, prepared by an action of sodium dihydridobis(2-methoxyethanolato)aluminate on derivatives of phosphine, phosphine oxide, or phosphorus esters, react with primary and secondary alkyl halides to produce phosphine derivatives having a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9feee2970979b695405faf13e123080
https://doi.org/10.1246/bcsj.56.219
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8
An improved synthesis of 1,2,3,4,6-Penta-O-Acetyl-5-Deoxy-5-C-[(R,S)-ethylphosphinyl]-α,β-d-glucopyranoses, and formation of 2,3,4,6-Tetra-O-acetyl-1,5-anhydro-5-deoxy-5-C-[(R)-Ethylphosphinyl]-d-glucitol
Autor: Margaret-Ann Armour, Saburo Inokawa, Mitsuji Yamashita, Hiroshi Murata, Hiroshi Yamamoto, Thomas T. Nakashima
Publikováno v: Carbohydrate Research. 133:45-51
Treatment of 3- O -acetyl-5-deoxy-5- C -[ethyl(methoxy)phosphinyl]-1,2- O -isopropylidene-6- O -(triphenylmethyl)-α- d - xylo -hexofuranose conveniently prepared from 1,2:5,6-di- O -isopropylidene-α- d -glucose in 8 steps, with sodium dihydrobis(2-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aeb0cd06da2bd7cf442bded39ba4db7c
https://doi.org/10.1016/0008-6215(84)85181-2
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9
Synthesis of 1,2,4-Tri-O-acetyl-5-deoxy-5-[(R,S)-ethyl- and phenylphosphino]-3-O-methyl-α,β-D-xylopyranoses and an Efficient Conversion to the Corresponding 5-(Phosphinothioyl)-D-xylopyranoses
Autor: Heizan Kawamoto, Tadashi Hanaya, Nobuyuki Shigetoh, Hiroshi Yamamoto, Saburo Inokawa
Publikováno v: Chemistry Letters. 18:349-352
Reduction of 1,2,4-tri-O-acetyl-5-deoxy-5-[(R,S)-ethyl- and phenylphosphinyl]-α,β-D-xylopyranoses with trichlorosilane in benzene in the presence of triethylamine smoothly afforded the corresponding title 5-phosphino-D-xylopyranoses (10–13a,b) wi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54b8ef96296e6a9192b2d8228ba2c71d
https://doi.org/10.1246/cl.1989.349
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10
New Synthesis and Hydroboration of Vinylphosphonates
Autor: Saburo Inokawa, Hiroshi Yoshida, Mitsuji Yamashita, Tsuyoshi Ogata, Mitsumasa Kojima
Publikováno v: Bulletin of the Chemical Society of Japan. 53:1625-1628
The Arbuzov reaction of trimethyl and triethyl phosphites with acyl chlorides gave 1-oxoalkylphosphonates in 57–80% yields. The Wittig reaction of the phosphonates with methylenetriphenylphosphorane gave vinylphosphonates in 25–59% yields. Hydrob
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bb69497a9b5b80cd2a5999657ded9b74
https://doi.org/10.1246/bcsj.53.1625
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