Catalytic Dehalogenation of sp2 C-F and C-Cl Bonds in Fluoro- and Chloroalkenes
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- 作者：Alicia A. Peterson ; Kristopher McNeill
- 刊名：Organometallics
- 出版年：2006
- 出版时间：October 9, 2006
- 年：2006
- 卷：25
- 期：21
- 页码：4938 - 4940
- 全文大小：41K
- 年卷期：v.25,no.21(October 9, 2006)
- ISSN：1520-6041
文摘
Catalytic dehalogenation of fluorinated and chlorinated ethylenes by (PPh3)3RhCl in the presence of Et3SiH at35 
C is described, and product identity and kinetic parameterswere determined. This system has an intramolecular preferencefor Cl over F removal, an intermolecular preference for F- overCl-containing alkenes, and a strong preference for sp2 over sp3carbon-halogen bonds. Both the substitution pattern and thesubstituent identity are important in determining the rate of thedehalogenation.
C is described, and product identity and kinetic parameterswere determined. This system has an intramolecular preferencefor Cl over F removal, an intermolecular preference for F- overCl-containing alkenes, and a strong preference for sp2 over sp3carbon-halogen bonds. Both the substitution pattern and thesubstituent identity are important in determining the rate of thedehalogenation.