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
Rok vydání:	2014
Předmět:	biology Chemistry Organic Chemistry Asymmetric hydrogenation Cinchona chemistry.chemical_element biology.organism_classification Catalysis Inorganic Chemistry X-ray photoelectron spectroscopy Organic chemistry Iridium Physical and Theoretical Chemistry
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
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6e698286f78ebd7bb1ed5c12cf4409b9 https://doi.org/10.1016/j.tetasy.2014.04.013 Zobrazit plný text záznamu Full Text from ScienceDirect