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RISPolyphosphoric acid supported on silica-coated NiFe2O4 nanoparticles: An efficient and magnetically-recoverable catalyst for N-formylation of amines
Year: 2014
Abstract:
A rapid, green and simple method for the N-formylation of various aromatic amines with
formic acid using polyphosphoric acid supported on silica-coated NiFe2O4 magnetic
nanoparticles (NiFe2O4@SiO2–PPA) under solvent-free conditions...
Silica coated magnetic NiFe2O4 nanoparticle supported phosphomolybdic acid; synthesis, preparation and its application as a heterogeneous and recyclable catalyst for the one-pot synthesis of tri- and tetra-substituted imidazoles under solvent free conditi
Year: 2015
Abstract:
In this research, a magnetically-recoverable catalyst (NiFe2O4@SiO2–H3PMo12O40) was prepared by
supporting phosphomolybdic acid (H3PMo12O40) onto silica-coated NiFe2O4 nanoparticles. The prepared
sample was characterized by FT-IR, TEM...