期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2012, 期 25, 页码 4844-4852出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201200223
关键词
Asymmetric catalysis; Ligand design; Palladium; Halogenation; Fluorine
资金
- Spanish Ministerio de Ciencia e Innovacion (MICINN) [CTQ2005-03416, CTQ2008-00683]
- Consolider Ingenio Intecat [CSD2006-0003]
The synthesis of new enantiopure wide-bite-angle diphosphanes is described as well as their use in the palladium-catalyzed asymmetric fluorination of a-cyanoacetates. Enantiomeric excesses up to 93?% were obtained when Pd(OAc)2-SPANphos was used as catalyst for the fluorination of ethyl 2-cyano-2-phenylacetate with N-fluorobenzenesulfonimide (NFSI).
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