SEARCH Articles Figures Tables 5-Pyrazolones, 4-arylideneDiels-Alder reactions Pyrazolon Pyrazolone Pyrazolone, benzylideneKnoevenagel reaction Pyrazolone, benzylideneKnoevenagel reaction stereoselectivity Pyrazolones Knoevenagel reaction Pyrazolones, reaction with aldehydes Pyrazolons Reaction with pyrazolones