A BH ボリウム由来チオキソボラン,そのパーソルフィード,およびそれらのリ+−誘発反応とアルキンと二酸化炭素
Chaohuang Chen1, Constantin G Daniliuc1, Christian Mück-Lichtenfeld1
1Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany.
Journal of the American Chemical Society
|November 9, 2020
まとめ
研究者らは,チオキソボランとボラジチランを含む新しいボロン-硫黄化合物を合成した. これらの化合物は二酸化炭素とフェニラセチレンと反応し,新しい異環構造を形成した.
科学分野:
- オーガノボロン化学
- メイングループ 化学
- 硫黄化学
背景:
- ボロン-硫黄化合物は,そのユニークな反応性のために興味があります.
- 安定したボレニウム塩は,新しいボロン種の先駆体として機能する.
研究 の 目的:
- 新しいチオキソボランとボルンパーシルフィード化合物を合成し,特徴づけること.
- 小分子とアルキンの反応性を調べる
主な方法:
- ボレニウム塩と元素硫黄の反応
- チオキソボランを形成する.
- 硫黄とさらに反応して,ボルンパルスルファイドを生成する.
- 炭素二酸化物とフェニルアセチレンとの反応は,Li[B(C6F5) 4の存在で研究されている.
主要な成果:
- N-ヘテロサイクルカルベン (NHC) 安定したチオキソボラン (IMes ((C6F5) BS) の成功合成.
- NHCで安定したボラディチアラン (ボルンパースルファイド) の形成.
- チオキソボランは,CO2と公式の [2+2] サイクル添加を経て,ボロンチオカルボネートを得ました.
- 硫化ボロンはフェニルアセチレンと反応し,B-S結合の挿入によって5基のヘテロサイクルを形成した.
結論:
- 異なる反応性を持つ新しいボロン-硫黄化合物が合成されました.
- これらの化合物は,新しいヘテロサイクルシステムの構成要素として潜在性を示しています.
- この研究はオルガノボロンと硫黄化学の範囲を拡大する.
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