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DOI: 10.1055/s-2006-951516
Reduction of Allylpalladium(II)chloride Dimer by Formation of Allyloxysilanes
Publication History
Publication Date:
25 October 2006 (online)
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Abstract
The reduction of allylpalladium(II)chloride dimer (APC) to a Pd(0) species can be effected by reaction with alkali metal silanolates. The reduction is extremely rapid in the presence of chelating bisphosphine ligands and for a variety of silanolates.
Key words
palladium - silanolate - cross-coupling - reduction - mechanism
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References and Notes
Denmark, S. E.; Ober, M. H., unpublished results.
20The presence of the disiloxane was confirmed by GC-MS analysis. This peak was the major constituent in the GC chromatogram as determined by relative area percents.
22The stability of the silanolate was tested using 1H NMR spectroscopy. The 1H NMR spectrum of a 0.075 M solution of K+ 1a - in CH2Cl2 was unchanged after standing at r.t. for 5 h.
29Response Factor (R f ) calculated using: R f = (mmol of internal standard*area of x)/(mmol of x*area of internal standard).