2010 Fiscal Year Final Research Report
Stealth Photochromism based on Electrocyclization
| Project Area | New Horizons of Photochromism: Customized Molecular Design and Novel Applications |
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| Project/Area Number |
19050004
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Yokohama National University |
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Principal Investigator |
YOKOYAMA Yasushi Yokohama National University, 工学研究院, 教授 (60134897)
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| Co-Investigator(Kenkyū-buntansha) |
UBUKATA Takashi 横浜国立大学, 工学研究院, 助教 (00344028)
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| Project Period (FY) |
2007 – 2010
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| Keywords | フォトクロミズム / 新規分子 / 紫外域フォトクロミズム / 電子環状反応 / ジアステレオ選択性 / 光環化量子収率 / ポリシロキサン / 高速熱戻り反応 |
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| Research Abstract |
Thermally irreversible stealth photochromic system, which is composed of two colorless states, has been prepared with a short synthetic steps. In addition, a diarylethene which cyclizes photochemically with 100% diastereoselectivity, and a bisthiazolylindenone derivative which cyclizes with high quantum yield, have been synthesized. It has also been showed that the colored form of spirooxazine attached to the cross-linked polysiloxane returns to the stable colorless form with the fast reaction rate as in solution.
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