The Metalation of Fluorene by Means of the Diethylmagnesium–Hexamethylphosphoramide System
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概要
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The metalation of fluorene by means of the Et<SUB>2</SUB>Mg–HMPA system was investigated. The reaction scarcely occurred at all when the mole ratio of HMPA: Et<SUB>2</SUB>Mg fell below 1:1, but it proceeded easily when the ratio was over 1:1, and a solvent-separated ion pair of magnesium fluorenide was formed. When the ratio was 2:1, the order of reaction was unity in both fluorene and Et<SUB>2</SUB>Mg. It was demonstrated by the kinetic and NMR studies that the active species of metalation in such a case was not Et<SUB>2</SUB>Mg but the Et<SUB>2</SUB>Mg–HMPA complex, in which two molecules of HMPA are coordinated to Et<SUB>2</SUB>Mg.
- 公益社団法人 日本化学会の論文
著者
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Kakiuchi Hiroshi
Department Of Applied Chemistry Faculty Of Engineering Yokohama National University
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Tomoi Masao
Department Of Advanced Materials Chemistry Faculty Of Engineering Yokohama National University
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