Diastereoselective addition of organocuprates on 1,4-dihydropyridine-3-carboxaldehydes. Synthesis of chiral 1,4-dihydropyridyl-3-alcohols and pyridyl-3-alcohols
Chiral1,4-dihydropyridyl-3-alcohols are obtained via a diastereoselective (de 90% – > 95%) 1,2 addition of organocuprates on chiral1,4-dihydropyridine-3-carboxaldehydes and are transformed into chiralpyridyl-3-alcohols (90% – > 95%).