The reaction of an (E)-samarium dienolate, generated by the regioselectivereductive cleavage of a phenylsulfonyl activated cyclopropyl ketone with samarium(II) iodide, with aliphatic and aromatic aldehydes gives the 2-substituted anti-1,3-diol monoester derivatives, stereoselectively, in good to excellent yields. The results represent the first report of a dienolate in the aldol-Tishchenko reaction