炭素二酸化物の選択的ルテニウム触媒変換:フォーマルデヒドに対する代替アプローチ

Max Siebert¹, Max Seibicke¹, Alexander F Siegle¹

¹Department Chemie , Ludwig-Maximilians-Universität München , Butenandtstraße 5-13 , 81377 München , Germany.

Journal of the American Chemical Society

|December 12, 2018

まとめ

炭酸水素と水素ガスを使ったフォーマルデヒド誘導体の新型"ステップ合成"を開発しましたこの効率的な触媒プロセスは伝統的なホルムアルデヒド生産方法に持続可能な代替手段を提供しています

科学分野:

カタリシス
緑の化学
有機合成

背景:

フォーマルデヒドはエネルギー集約的で原子効率の低いメタノールの酸化過程で生成される重要な工業化学物質です.
現在のホルムアルデヒド合成方法は,エネルギー消費と廃棄物の発生に問題があります.

研究の目的:

フォーマルデヒド誘導体の新型,高度に選択的な1段階合成を開発する.
二酸化炭素と水素ガスを持続可能な原料として利用する.
効率的なホルムアルデヒド誘導体の生産のために,均質なルテニウム触媒を使用する.

主な方法:

二酸化炭素と水素ガスの選択的還元には,均質なルテニウム触媒を使用した.
反応は,メタノールの存在下で,適度な温度 (90 °C) と圧力 (90 bar H2/20 bar CO2) で行われた.
反応条件と触媒の性能を最適化するために,触媒システムの包括的なスクリーニングが行われました.

主要な成果:

ディメトキシメタンは,ホルムアルデヒドの誘導体であり,高い選択性 (> 90%) で合成された.
メチルホルマートは副産物として特定され,さらにダイメトキシメタンに変換できます.
ダイメトキシメタンでは最大786個,メチルフォーマットでは最大1290個の売上高を達成した.

結論:

CO2とH2からダイメトキシメタンの高度に選択的で効率的な1段階合成が成功裏に実証されました.
開発された触媒システムは,従来のホルムアルデヒド生産に有望な持続可能な代替手段を提供します.
さらに最適化すれば,全体的なプロセスの効率が向上し,工業的な応用が広がる可能性があります.

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