| Project/Area Number |
03453092
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
有機工業化学
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| Research Institution | Nagoya University |
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Principal Investigator |
SAWAKI Yasuhiko Nagoya University, Faculty of Engineering Professor, 工学部, 教授 (30023120)
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| Co-Investigator(Kenkyū-buntansha) |
ISHIGURO Katsuya The same, 工学部, 助手 (40202981)
KIMURA Makoto Nagoya University, Faculty of Engineering Research Associate, 工学部, 助手 (30144124)
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| Project Period (FY) |
1991 – 1992
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| Project Status |
Completed (Fiscal Year 1992)
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| Budget Amount *help |
¥7,900,000 (Direct Cost: ¥7,900,000)
Fiscal Year 1992: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1991: ¥7,400,000 (Direct Cost: ¥7,400,000)
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| Keywords | Active oxygen species / Oxygenation / Singlet oxygen / Carbonyl oxide / Persulfoxide / Nitroso oxide / パースルオキシド / 酸素活性種 |
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| Research Abstract |
Structure and reactivity of XOO species as an important active oxygen species have been studies systematically. The characteristic reactivity of XOO species for carbonyl oxides (X = R_2C) and persulfoxides(X = R_2S) is a nucleophilic oxygen transfer to sulfoxides, which suggest that the XOO species are shown as a 1,3-dipolar reagent. In contrast, nitroso oxides (RNOO) transfer oxygen atoms as an electrophilic 1,3-diradical. The cyclization of XOO species to cyclic dioxiranes has been shown not to occur for the cases of carbonyl oxides and persulfoxides, which could be rationalized by the double bond nature of X-O bobd for X = C and S atoms. The cyclization of XOO species was shown to be facile for the case of nitroso oxides (X = N atoms), which reflects the single bond nature of N-O bond of RNOO 1,3-diradicals. The predominant factor controlling the reactivity of XOO species has been shown to be the electronegativity of X.
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