| Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2022: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
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| Outline of Final Research Achievements |
Group 5-7 metal complexes have been used as promoters or catalysts for polymerization and oxidation reactions because they can take various valence and oxidation states. In this study, we aimed to develop new reactions from a different perspective utilizing the reactivity of gem-dimetalloalkanes as alkylidene equivalents. We found stereoselective stannylcyclopropanation of olefins and addition/cyclization reactions with 1,n-enynes and alkynyl ketones, and confirmed that the generated alkylidene equivalents have nucleophilic Schrock-type reactivity. By adding appropriate ligands, we succeeded in switching the pathway of the cyclization reaction and in single-crystal X-ray structure analysis of the reactive gem-dichlorosilylmethanes.
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