摘要
Butanons, 2-pentanone,2-hexanone and cyclohexanone were cyanoethylated,using KOH/HOCH2CH2OCH2 as a catalyst,giving yields of more than 30%.There inorganic acid salts,NaHSO4,KHSO4 and KH2PO4,were employed for the first time to catalyze the isomerization of δ-keto nitriles obtained above to correspounding pyrklones.The three catalysts were found to bave significantly high activities and their activities have close relation to their physical properties,especially are in direct proportion to their acidities.
Butanons, 2-pentanone,2-hexanone and cyclohexanone were cyanoethylated,using KOH/HOCH2CH2OCH2 as a catalyst,giving yields of more than 30%.There inorganic acid salts,NaHSO4,KHSO4 and KH2PO4,were employed for the first time to catalyze the isomerization of δ-keto nitriles obtained above to correspounding pyrklones.The three catalysts were found to bave significantly high activities and their activities have close relation to their physical properties,especially are in direct proportion to their acidities.
