期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2010, 期 25, 页码 4893-4901出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201000648
关键词
Homogeneous catalysis; Zinc; Iron; Amidine ligands; Hydrosilylation; Epoxidation
资金
- Deutsche Forschungsgemeinschaft (DFG)
- Graduiertenkolleg [1213]
- Max-Buchner-Forschungsstiftung (DECHEMA)
In the present study the abilities of catalysts modified by formamidine ligands have been examined in the zinc-catalyzed hydrosilylation of ketones and the iron-catalyzed epoxidation of stilbene. In case of hydrosilylation diethylzinc combined with easily accessible formamidine ligands allow for the efficient reduction of various aryl and alkyl ketones. By using a convenient in situ catalyst system high turnover frequencies up to more than 1.000 h(-1) and a broad functional group tolerance were achieved. Moreover, the formamidine ligands were successfully applied in the iron-catalyzed epoxidation of stilbene with hydrogen peroxide in good yield and chemoselectivity.
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