Supported Aluminum Catalysts for Olefin Hydrogenation

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• 作者：Jeffrey Camacho-BunquinMagali Ferrandon ; Ujjal Das ; Fulya Dogan ; Cong Liu ; Casey Larsen ; Ana E. Platero-Prats ; Larry A. Curtiss ; Adam S. Hock ; Jeffrey T. MillerSonBinh T. Nguyen ; Christopher L. Marshall ; Massimiliano DelferroPeter C. Stair
• 刊名：ACS Catalysis
• 出版年：2017
• 出版时间：January 6, 2017
• 年：2017
• 卷：7
• 期：1
• 页码：689-694
• 全文大小：445K
• ISSN：2155-5435

文摘

Three-coordinate alkylaluminum sites were developed on a catechol-containing porous organic polymer support (CatPOP A₂B₁). The CatPOP-based alkylaluminum sites were characterized by solid-state attenuated total reflectance IR spectroscopy, ¹H and ²⁷Al magic-angle-spinning NMR spectroscopy, pair-distribution function X-ray absorption spectroscopy, and elemental analysis. The low-coordinate organoaluminum sites can hydrogenate and isomerize a range of mono- and disubstituted alkenes and alkynes under mild conditions (75–100 °C, 5–14 bar H₂, 20 h). Results of experimental and computational mechanistic investigations suggest a heterolytic mechanism for the observed hydrogenation–isomerization activity.