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- 今堀 龍志
- 東北大学大学院薬学研究科
書誌事項
- タイトル別名
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- A Novel Deprotonative Functionalization of Aromatics with Phosphazene Base
- フォスファゼン塩基を用いる芳香環化合物の新規脱プロトン--修飾反応
- フォスファゼン エンキ オ モチイル ホウコウカン カゴウブツ ノ シンキ ダツプロトン シュウショク ハンノウ
この論文をさがす
説明
A novel type of deprotonative functionalization of aromatics was accomplished with a phosphazene base (t-Bu-P4 base). For various nitrogen heteroaromatics and benzene derivatives, deprotonative 1,2-additions proceeded with the t-Bu-P4 base and ZnI2 as an additive in the presence of carbonyl compounds. The t-Bu-P4 base has both extremely strong Brønsted basicity and less nucleophilicity due to its huge, widely conjugated structure, and highly chemoselective deprotonations were achieved. In addition the nonmetallic t-Bu-P4 base should not function as a Lewis acid. Therefore the deprotonation with the t-Bu-P4 base is considered to proceed via a different pathway from traditional deprotonative metalation of aromatics with metallic bases. Some reactions with unique regioselectivities were observed.<br>
収録刊行物
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- 薬学雑誌
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薬学雑誌 124 (8), 509-517, 2004-08-01
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282681105584512
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- NII論文ID
- 110003614981
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- NII書誌ID
- AN00284903
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- ISSN
- 13475231
- 00316903
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- NDL書誌ID
- 7046432
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- PubMed
- 15297720
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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
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可