93453-82-8Relevant academic research and scientific papers
HYDRODIMERISATION ELECTROCHIMIQUE DE CETONES AROMATIQUES ENCOMBREES EN MILIEU APROTIQUE ET EN PRESENCE DE CHLORURE DE CHROME
Fournier, F.,Berthelot, J.,Pascal, Y. L.
, p. 339 - 347 (2007/10/02)
The electrochemical reduction of hindered aromatic ketones which are difficult to reduce alone, can be achieved in an aprotic medium (DMF) on a mercury pool cathode, in presence of Cr(III) chloride, at the reduction potential of the Cr(II)/Cr(0) system, but at a less negative potential than that of the ketone itself.There is a selective hydrodimerisation into an α-glycol, with total lack of polimerisation.With disymmetric ketones, the dl-diastereoisomers of the diols are produced.The effect of chromium is due either to the reduction of a Cr-ketone complex or to thereduction of the ketone by a film of colloidal chromium on the electrode surface.
Reduction electrochimique de cetones aromatiques encombrees en milieu aprotique et en presence de chlorure de manganese
Fournier, Francoise,Berthelot, Jacques,Pascal, Yves-Louis
, p. 2121 - 2125 (2007/10/02)
The electrochemical reduction of hindered aromatic ketones which are difficult to reduce can be achieved in an aprotic medium (DMF) on a mercury pool cathode, in presence of Mn(II) chloride, at the reduction potential of the Mn(II)?Mn(0) system, but less negative than that of the ketone itself.There is selective hydrodimerization into an α-glycol, with total lack of polymerization.With dissymetric ketones, the dl diastereomers of the diols are produced preferentially.The effect of manganese is due either to the reduction of a Mn(I) or Mn(0) - ketone complex or to the reduction of the ketone by a film of colloidal manganese on the electrode surface.
