DESHYDROGENATION D'ALCOOLS EN COMPOSES CARBONYLES PAR LE SYSTEME CuCl/O2/Ligande

Article abstract of DOI:10.1016/0040-4020(80)87017-7

The dehydrogenation of alcohols to the corresponding carbonyl compounds by CuCl/O2/ligand (L) shows relative rates of dehydrogenation according to the type of alcohol used; primary or secondary benzyl alcohols>allylic alcohols or aliphatic alcohols>cyclic alcohols.The rate of this reaction was found to be dependent upon the nature of the ligands used; e.g. phenanthroline 1-10>bipyridyl 2,2'>TMEDA, etc.When L=phenanthroline 1-10 the catalytic effect, of the system ROH/CuCl/L (3:1:1), was found to be similar to the system ROH/CuCl/L (1:2:2).The pure oxygen was replaced by air without any noticeable change in the rate of the reaction.The primary aliphatic alcohols lead to the aldehydes containing 1, 2, etc. carbon atoms fewer than the starting alcohols.