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Synthesis of pyranopyrazoles using nano‐Fe‐[phenylsalicylaldiminemethylpyranopyrazole]Cl 2 as a new Schiff base complex and catalyst
Author(s) -
MoosaviZare Ahmad Reza,
Goudarziafshar Hamid,
Saki Khadijeh
Publication year - 2018
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3968
Subject(s) - chemistry , ethyl acetoacetate , malononitrile , salicylaldehyde , schiff base , thermogravimetry , thermogravimetric analysis , catalysis , benzaldehyde , hydrazine (antidepressant) , hydrate , nuclear chemistry , fourier transform infrared spectroscopy , polymer chemistry , condensation reaction , infrared spectroscopy , inorganic chemistry , organic chemistry , chemical engineering , chromatography , engineering
By the condensation reaction of benzaldehyde with ethyl acetoacetate, malononitrile and hydrazine hydrate in the presence of FeCl 2 , a pyranopyrazole derivative was prepared which was then reacted with salicylaldehyde to afford nano‐Fe‐[phenylsalicylaldiminemethylpyranopyrazole]Cl 2 (nano‐[Fe‐PSMP]Cl 2 ). The prepared nano‐Schiff base complex was fully characterized using Fourier transform infrared spectroscopy, X‐ray diffraction, thermogravimetric analysis, differential thermogravimetry, scanning electron microscopy and UV–visible spectroscopy, and was used as an efficient and catalyst for the preparation of pyranopyrazoles.