Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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Outline of Final Research Achievements |
Lewis acid mediated transformation of 11C-methyl esters to heterocycles has investigated. Firstly, we succeeded the construction of imidazoline by reaction with 11C-methyl ester and ethylenediamine in the presence of trimethyl aluminum as a Lewis acid (AlMe3). However after worked up of the reaction, AlMe3 generated large amount of insoluble matter which is difficult to purify imidazoline using auto-synthesizer. Thus, we examined another Lewis acids. Finally, we found that titanium-based Lewis acid is worked well to give good yield of imidazolines and to generate much less amount of insoluble matter.
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