been prepared by treatment of the corresponding ethyl safranates with excess allyl lithium followed by alkoxide catalyzed isomerization of the resulting products with β, γ-unsaturated ketonic side chains. Addition of allyltriphenylphosphorane (preferably prepared from allyltriphenylphosphonium chloride) rather than the propenyl isomer to ethyl α-isopropylidene-acetoacetate produced ethyl α-safranate.
Synthesis and Structure of Hexachloroplatinate Complexes
作者:A. R. Tkacheva、V. V. Sharutin、O. K. Sharutina、P. A. Slepukhin
DOI:10.1134/s1070363219090147
日期:2019.9
The reactions of tetraorganylphosphonium and trimethylammonium chlorides with hexachloroplatinic acid hydrate in an acetonitrile-diethyl sulfoxide solution produced [Ph3PCH=CHCH3](2)[PtCl6], [Ph3PCH2OCH3](2)[PtCl6], and [Me3NH](2)[PtCl6] complexes. The structure of the resultant platinum complexes was examined by X-ray diffraction analysis.