Aliphatic, aromatic and a,b-unsatd. ketones were readily reduced to the corresponding secondary alcs. by iso-Pr magnesium bromide in the presence of a catalytic amount of bis(neomenthylcyclopentadienyl)titanium dichloride, while diaryl ketones afforded reduction coupling product pinacols under similar conditions. Aliphatic and aromatic esters were reduced to the corresponding primary alcs. by the Grignard reagent with the same catalyst.