書誌事項
- タイトル別名
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- Effect of Counter Anions on the Lewis Acidity of Lithium Ion in Trityl Cation Formation
- トリチル カチオン セイセイ ハンノウ ニ オヨボス リチウム イオン ノ キュウデンシ ハンノウセイ ノ テイリョウカ
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A trityl cation was generated from the reactions of trityl chloride and trityl alcohol with alkaline salt catalysts in weakly coordinating dichloromethane. The generated trityl cation was monitored by UV spectra. In the case of trityl chloride, the catalytic activities were not so different among alkaline salt catalysts such as H_3OTFPB, LiTFPB, NaTPFPB, NaTFPB, and others. These results indicated that anhydrous Li and Na salts have comparable activities to H_3OTFPB in the formation of trityl cation from trityl chloride. On the other hand, the amount of trityl cation generated from trityl alcohol by LiTFPB is one fourteenth as much as the amount generated by H_3OTFPB. This is due to the stronger affinity of Li^+ to alcohols than to chlorides. Furthermore, hydrated alkaline salts have a lower catalytic activity than anhydrous ones because the water decreases the Lewis acidity of Li^+.
収録刊行物
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- 九州大学機能物質科学研究所報告
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九州大学機能物質科学研究所報告 15 (2), 169-175, 2001-12-14
九州大学機能物質科学研究所
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詳細情報 詳細情報について
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- CRID
- 1390572174789787008
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- NII論文ID
- 110006177594
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- NII書誌ID
- AN10060378
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- ISSN
- 09143793
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- DOI
- 10.15017/7946
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- HANDLE
- 2324/7946
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- NDL書誌ID
- 6065798
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用可