C. Brosa et al., The cathodic reduction of activated olefins. Experimental conditions allowing the specific hydrogenation of the enone derived from ergosterol, PHYS CHEM P, 3(13), 2001, pp. 2655-2661
The reduction of the bulky enone 1 derived from ergosterol was performed in
non-aqueous media without and with proton donor. A fairly stable anion rad
ical was obtained and characterized. When 1 was reduced in the presence of
an efficient proton donor (benzoic acid, trifluoroacetic acid) saturation o
f the double bond was achieved with reasonable yield. The overall process a
s a function of experimental conditions is discussed.