Green synthesis of 1 H ‐pyrazolo[1,2‐ b ]phthalazine‐2‐carbonitrile derivatives using a new bifunctional base–ionic liquid hybrid magnetic nanocatalyst

The ionic liquid‐base N , N ,2,2,6,6‐hexamethyl‐ N ‐(3‐(trimethoxysilyl)propyl)piperidin‐4‐amonium iodide was grafted onto titana‐coated NiFe 2 O 4 nanoparticles for obtaining an efficient and reusable ionic liquid‐base hybrid nanocatalyst. The structure of hybrid nanoparticles was characterized using FT‐IR (Fourier‐transform infrared spectroscopy), field emission scanning electron microscopy, EDS (energy‐dispersive X‐ray spectroscopy), EDS map...