Substitution and Organohalide Oxidative Addition Reactions
Involving a Dimethylplatinum(II) Complex in a Micelle Medium
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Abstract
Micellar
system of sodium dodecyl sulfate (SDS) in a mixture of water/ethanol
(1/1) is used as a new medium for stabilization of the platinum(II)
complex [PtMe<sub>2</sub>(bipy)], in which bipy = 2,2′-bipyridine,
knowing that the complex is unstable in water or ethanol in the absence
of SDS. Kinetic studies for oxidative addition reactions of complex
[PtMe<sub>2</sub>(bipy)] with methyl iodide, allyl bromide, or propargyl
bromide and also for substitution reactions of the chelate 2,2′-bipyridine
ligand in the complex [PtMe<sub>2</sub>(bipy)] by the P donor reagent
P(O-<sup>i</sup>Pr)<sub>3</sub>, L, to form the complex <i>cis</i>-[PtMe<sub>2</sub>L<sub>2</sub>], were successfully investigated
in the green and safe solvent micellar system of SDS by monitoring
the decay of the MLCT band in the UV–visible spectra
