Cationic Rh(I) catalyst in fluorinated alcohol: mild intramolecular cycloaddition reactions of ester-tethered unsaturated compounds |
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| Authors: | Saito Akio Ono Takamitsu Hanzawa Yuji |
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| Institution: | Laboratory of Organic Reaction Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan. |
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| Abstract: | In fluorinated alcohols, the cationic Rh(I) species, which is derived from Rh(COD)Cl]2 and AgSbF6, efficiently catalyzed intramolecular 4+2] cycloaddition reactions of ester-tethered 1,3-diene-8-yne derivatives. The catalytic system was also effective in intramolecular 5+2] cycloaddition reactions of ester-tethered omega-alkynyl vinylcyclopropane compounds. |
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