| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Reactions for synthesis of crowded conjugated molecules as polycyclic aromatic hydrocarbon (PAH) precursors were investigated. Rhodium-catalyzed annulation of diynes and 2 equivalents of biphenylboronic acids through C-H cleavage was optimized to afford 1,4-bis(10-arylphenanthrene-9-yl)benzenes. Oxidative cyclization of the obtained compounds gave non-planar PAHs with green fluorescence.
Moreover, ruthenium-catalyzed annulation of 1-naphthylsilanes and alkynes through C-H cleavage, was developed to prepare silaphenalenes which are kinds of silicon-containing PAHs.
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