One-pot synthesis of 4,4ʹ-(arylmethylene)-bis-(3-methyl-1-phenyl-1H-pyrazol-5-ols) catalyzed by Brönsted acidic ionic liquid supported on nanoporous Na+-montmorillonite
Keywords: Montmorillonite; Immobilization of ionic liquid; 3-Methyl-1-phenyl-5-pyrazolone; 4,4ʹ-(Arylmethylene)-bis-(1H-pyrazol-5-ols);