| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
We successfully accomplished the synthesis, isolation and characterization of 1, 2-dialkynyldislenes containing various substituents. A closer investigation of their spectroscopic properties clearly showed a conjugation ofπ-electrons between the disilene and alkynyl moieties. Desilylation or degermylation reactions of trimethylsilylethynyl or trimethylgermylethynyl-substituted disilenes with methyllithium resulted in the formation of the corresponding lithium acetylide derivatives, which were subsequently protonated to yield 1, 2-dialkynyldislenes with terminal alkynyl groups. These disilenes are potentially useful synthons for the construction of novelπ-conjugated systems containing disilene units
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