| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Research Abstract |
A series of novel chiral ionic Bronsted acids, P-spiro chiral tetraaminophosphonium barfate, have been developed. These chiral salts were found to be an effective catalyst for hetero-Michael addition to nitroolefins with highly enantioselective manner, which is regarded as one of the challenging transformations. The products of these reactions are useful chiral intermediate of biologically relevant molecules. Further, the acidity of the salt was successfully enhanced trough the appropriate structural modification.
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