Zobrazeno 1 - 8 of 8 pro vyhledávání: '"Kazunari Hirakawa"'
2
Cellulose Spherical Microbeads Interfacially-controlled by Hard Inorganic Nano-Particles Using Viscose Phase Separation Method and Their Applications to Abrasive Materials
Autor: Seitaro Kobayashi, Shoji Nagaoka, Ken Satoh, Kazunari Hirakawa, Masanori Nagata, Hirotaka Ihara, Makoto Takafuji
Publikováno v: KOBUNSHI RONBUNSHU. 65:80-89
セルロースと硬質無機材料との複合微粒子化により，シリコンウエハなど，精密機械部品を研磨するセルロース複合砥粒材の開発を検討した．セルロースは，セルロースザンテート水溶
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::879836bffb29178936825d84c15e43e5
https://doi.org/10.1295/koron.65.80
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5
A new synthesis of α-methylene lactones
Autor: Kazunari Hirakawa, Masahiko Yamaguchi, Shinichiro Koyanagi, Seigo Nakamura, Toru Minami
Publikováno v: J. Chem. Soc., Perkin Trans. 1. :2385-2390
Various α-diethoxyphosphoryl-γ, δ-unsaturated acids were synthesized in good yields via alkylation of ethyl (diethoxyphosphoryl)acetate with allylic bromides. Iodo- and seleno-lactonization led to α-phosphono-iodo and -seleno lactones, which unde
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65ba58e970965e569ee827fa6cc44582
https://doi.org/10.1039/p19900002385
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6
ChemInform Abstract: A New Synthesis of α-Methylene Lactones
Autor: Shinichiro Koyanagi, Toru Minami, Masahiko Yamaguchi, Kazunari Hirakawa, Seigo Nakamura
Publikováno v: ChemInform. 21
Various α-diethoxyphosphoryl-γ, δ-unsaturated acids were synthesized in good yields via alkylation of ethyl (diethoxyphosphoryl)acetate with allylic bromides. Iodo- and seleno-lactonization led to α-phosphono-iodo and -seleno lactones, which unde
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63c4565317ab807ca1e637e77f0465f8
https://doi.org/10.1002/chin.199052151
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7
A New Synthesis of Fused Heterocyclic and Carbocyclic Compounds via the Reaction of the Vinylphosphonate with Imide and Ketone Enolate Anions
Autor: Kazunari Hirakawa, Toru Minami, Kazushi Watanabe
Publikováno v: Chemistry Letters. 15:2027-2030
The reaction of diethyl (α-ethoxycarbonylvinyl)phosphonate with various imide and ketone enolate anions gave functionalized heterocyclic and carbocyclic, and spirocarbocyclic compounds containing the phosphorus residue in good yields.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f0e8d9e43f7770e52e693b6ce08629a2
https://doi.org/10.1246/cl.1986.2027
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8
ChemInform Abstract: A New Synthesis of Fused Heterocyclic and Carbocyclic Compounds via the Reaction of the Vinylphosphonate with Imide and Ketone Enolate Anions
Autor: Kazunari Hirakawa, Kazushi Watanabe, Toru Minami
Publikováno v: ChemInform. 18
The reaction of diethyl (α-ethoxycarbonylvinyl)phosphonate with various imide and ketone enolate anions gave functionalized heterocyclic and carbocyclic, and spirocarbocyclic compounds containing the phosphorus residue in good yields.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::15cff3d06098bf4225e42c71d97b00c4
https://doi.org/10.1002/chin.198727233
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