1. New ruthenium/phosphino carbazole systems for selective preparation of alcohols under hydroformylation conditions.
- Author
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Zhou, Hao, Sun, Yajun, Deng, Li, Yang, Weiran, and Li, Yuehui
- Subjects
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HYDROFORMYLATION , *RUTHENIUM catalysts , *CARBAZOLE , *RUTHENIUM , *CATALYTIC hydrogenation , *CARBON monoxide , *ALCOHOL - Abstract
• P/N-H ligand facilitates Ru to exhibit efficient hydrogenation under CO. • The NH effect of ligands promote the hydrogenation process. • Co/Ru- L1 system smoothly achieves alcohol production under hydroformylation conditions. Efficient hydrogenation of aldehydes is highly desirable in hydroformylation process to obtain alcohol products. This work developed carbazole-derived phosphine ligands for efficient Ru-catalyzed hydrogenation of aldehydes in the presence of carbon monoxide. Up to 99 % yields of alcohols were obtained in the presence of high-pressure CO at 130 ℃. The results of different ligands revealed the crucial role of N H moiety on carbazole in promoting the catalytic hydrogenation. It was applied to the Co/Ru-catalyzed hydroformylation process, resulting in the production of long-chain alcohols with excellent yields. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
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