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C-Cl/Si-H exchange catalysed by P,N-chelated Pt(II) complexes
Frank Stöhr1, Dietmar Sturmayr, Ulrich Schubert
1Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9/165, A-1060, Wien, Austria.
Chemical Communications (Cambridge, England)
|October 26, 2002
Summary
This study shows that catalytic amounts of a platinum complex can effectively dehalogenate alkyl chlorides using dimethylphenylsilane. This reaction produces the corresponding alkane and a chlorosilane product.
Area of Science:
- Organometallic Chemistry
- Catalysis
- Organic Synthesis
Background:
- Alkyl chlorides are common organic compounds.
- Dehalogenation reactions are important in organic synthesis.
- Platinum complexes can catalyze various chemical transformations.
Purpose of the Study:
- To investigate the dehalogenation of alkyl chlorides using a specific platinum catalyst.
- To explore the efficacy of HSiMe2Ph as a reducing agent in this process.
Main Methods:
- Reaction of alkyl chlorides with HSiMe2Ph.
- Use of [(kappa 2-P,N)-Ph2PCH2CH2NMe2]PtMeCl as a catalyst.
- Analysis of reaction products (R-H and ClSiMe2Ph).
Main Results:
- Alkyl chlorides were successfully dehalogenated to form alkanes (R-H).
- Dimethylphenylsilane (HSiMe2Ph) was converted to chlorodimethylphenylsilane (ClSiMe2Ph).
- The platinum catalyst facilitated the reaction efficiently in catalytic amounts.
Conclusions:
- The platinum complex [(kappa 2-P,N)-Ph2PCH2CH2NMe2]PtMeCl is an effective catalyst for the dehalogenation of alkyl chlorides.
- Dimethylphenylsilane is a suitable reagent for this transformation, yielding alkanes and chlorosilanes.