期刊
ORGANOMETALLICS
卷 28, 期 19, 页码 5833-5836出版社
AMER CHEMICAL SOC
DOI: 10.1021/om9005356
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资金
- Scientific and Technological Research Council of Turkey (TUBITAK)
- EPSRC National Mass Spectrometry Centre (University of Wales, Swansea)
Reaction of 2-(dicyclohexcylphosphino)phenylferrocene with sodium tetrachloropalladate in the presence of 1 equiv of (R)-N-acetylphenylalamine in MeOH/H2O/CH2Cl2 at pH 8 resulted in the formation of bis(mu-chloro)bis-[2-(2-(dicyclohexylphosphino)phenyl)ferrocene-C-I, P]dipalladium(II) with a 59% enantiomeric excess of the S-p planar chiral palladacycle. Similarly, (dimethylamitionmethyl)ferrocene gave (S-p)-bis-(mu-chloro)bis[2-(dimethylaminomethyl)ferrocene-C-I, P]-dipalladium(II) in 96% ee. An intramolecular isotope effect of 2.3 was observed for the palladation of 2-(diphenylphosphino)phenylferrocene under these conditions.
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