Carbonyl compounds hydrodimerization, stereochemistry

There is insufficient information on the stereochemistry of the experimentally less simple hydrodimerization of aliphatic carbonyl compounds in a protic... 

The stereochemistry of the cathodic reaction of carbonyl compounds has been extensively studied from synthetic and mechanistic aspects. In this section the reaction is discussed in three parts hydrogenation to alcohols, hydrodimerization to pinacols, and cross-dimerization with unsaturated compounds. 

The stereochemistry of hydrodimerization of aliphatic carbonyl compounds has very rarely been studied. It was reported that an aliphatic ketone gave an almost equal quantity of the isomeric hydrodimers at a mercury cathode [160]. 

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