Heterogeneous asymmetric hydrogenation of heteroaromatic methyl ketones catalyzed by cinchona-modified iridium catalysts
Autor: | Xueli Zheng, Lin Zhang, Cong-Ye Zheng, Hua Chen, Ruixiang Li, Haiyan Fu, Chun Li |
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Rok vydání: | 2014 |
Předmět: | |
Zdroj: | Tetrahedron: Asymmetry. 25:821-824 |
ISSN: | 0957-4166 |
Popis: | A heterogeneous iridium catalyst was synthesized with silica particles as support for the hydrogenation of heteroaromatic methyl ketones. The catalyst and support were characterized by solid-state NMR, HTEM, SEM, XPS, and BET. A series of heteroaromatic methyl ketones were investigated at room temperature. The catalytic system was effective and more than 99% conversion and up to 83.6% enantioselectivity were obtained in the hydrogenation of heteroaromatic methyl ketones. |
Databáze: | OpenAIRE |
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