(NHC) SiCN-R: SiN-トランスファー剤として二調整Si0-イソシアン化物化合物
Surendar Karwasara1, Leonard R Maurer1, Benjamin Peerless1
1Institute of Inorganic Chemistry, University of Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany.
Journal of the American Chemical Society
|September 1, 2021
まとめ
研究者は,最初の2つの調整されたシリコン0-イソシアン化合物を合成し,V形シリコンセンターを特徴とする新種のシラキュムレンを作りました. この化合物は強力なシリコン転送剤として作用し,新しいシリコンを含む分子の合成を可能にします.
科学分野:
- オルガノシリコン化学
- メイングループ 化学
- 炭酸塩化学
背景:
- 二重調整のシリコン化合物は希少で,ユニークな電子特性を有する.
- N-ヘテロサイクリックカルベン (NHCs) は,反応性種を安定させるための多機能リガンドである.
- イソシアン酸リガンドは,低値主群の元素を安定させることができる.
研究 の 目的:
- 合成し,最初の2座標のシリコン ((0) -イソシアン化合物を特徴づける.
- この新しい化合物の構造と結合と反応性を調べる
- シリコンの転移剤としての可能性を探るためだ
主な方法:
- KC8でシリユミリデンの塩を還元する2段階の合成
- SiBr2 ((SIDipp) から Na[B ((ArF) 4) と ArMesNC を使用してブロミド抽出.
- 実験的 (NMR,X線結晶学) と理論的 (DFT) の方法による特徴付け.
主要な成果:
- 双調整シリコン0-イソシアン化物 (SIDipp) SiCN-ArMes (1) の合成に成功した.
- 化合物1は,Si 0 中心部にV形の幾何学と,曲ったSiCNコアを示している.
- この化合物は軸性キラリティを持ち,溶液中の2つの急速に相互変換するエナティオマーとして存在します.
- 化合物1は,シドリプ (SIDipp) 移転剤として有用性を示し,ゲルマシリンを合成した.
結論:
- 最初の安定した2座標のシリコン0-イソシアン化合物が合成され,特徴づけられた.
- 化合物のユニークな構造と結合は実験的および理論的研究によって解明されました.
- シリコン移転剤としてのその反応性は,シリコン化学における新しい道を開きます.
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