UNI-MB - logo
UMNIK - logo
 
E-viri
Recenzirano Odprti dostop
  • Consecutive three-component...
    Levi, Lucilla; Boersch, Christina; Gers, Charlotte F; Merkul, Eugen; Müller, Thomas J J

    Molecules (Basel, Switzerland), 11/2011, Letnik: 16, Številka: 11
    Journal Article

    A novel consecutive three-component synthesis of 3-(hetero)aryl-1H-pyrazoles via room temperature Sonogashira arylation of propynal diethylacetal used as a propargyl aldehyde synthetic equivalent has been disclosed. The final acetal cleavage-cyclocondensation with hydrazine hydrochloride at 80 °C rapidly furnishes the title compounds in a one-pot fashion.