エチレンからp-キシレンの合成
Thomas W Lyons1, Damien Guironnet, Michael Findlater
1Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States.
Journal of the American Chemical Society
|September 1, 2012
まとめ
新しい方法では,エチレンのみを原料として使用してパラキシレンを合成します. この持続可能なプロセスは,石油を避け,不要なイソマーのない純粋なパラキシレンを生成します.
科学分野:
- 化学合成 化学合成について
- 持続可能な化学
- 石油の代替品 石油の代替品
背景:
- 石油供給の減少に伴い,代替化学中間材料の需要が増えている.
- パラキシレン (Para-xylene) は,通常石油から派生した大量の化学物質です.
- エチレンは,再生可能バイオマスまたはシェールガスの代替原料である.
研究 の 目的:
- エチレンのみを用いたパラキシレンの新しい合成経路を開発する.
- オルトイソメアとメタイソメアを含まないパラキシレンを選択的に生産する.
主な方法:
- エチレンのトリメリゼーションにより,ヘクセンが形成されます.
- ヘクセンを2,4-ヘクサジエンに変換する.
- 2,4-ヘクサディエンのエチレンとのダイエルス・アルダー反応により3,6-ジメチルサイクロヘクセンが得られる.
- 3,6-ジメチルサイクロヘキセンのパラキシレンへの脱水化.
主要な成果:
- エチレンからパラキシレンを合成した.
- このプロセスは,オーソまたはメタ同位体によって汚染されていないパラキシレンを生成します.
- 重要な化学的中間物質への選択的かつ効率的な経路を示しています.
結論:
- エチレンは,パラキシレンの選択的合成のための唯一の原料として機能することができます.
- この方法は,石油ベースの生産に持続可能な代替案を提供します.
- 開発された経路は,様々な産業に不可欠な純粋なパラキシレンへの経路を提供します.
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