Premium
Copper coordinated‐poly(α‐amino acid) decorated on magnetite graphene oxide as an efficient heterogeneous magnetically recoverable catalyst for the selective synthesis of 5‐ and 1‐substituted tetrazoles from various sources: A comparative study
Author(s) -
Kazemnejadi Milad,
Mahmoudi Boshra,
Sharafi Zeinab,
Nasseri Mohammad A.,
Allahresani Ali,
Esmaeilpour Mohsen
Publication year - 2020
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.5273
Subject(s) - thermogravimetric analysis , chemistry , catalysis , magnetite , fourier transform infrared spectroscopy , heterogeneous catalysis , graphene , nitrile , inductively coupled plasma , aldehyde , oxide , nuclear chemistry , polymer chemistry , inorganic chemistry , chemical engineering , organic chemistry , materials science , metallurgy , plasma , physics , quantum mechanics , engineering
In this work, poly(α‐amino acid)‐Cu(II) complex immobilized on magnetite graphene oxide (GO/Fe 3 O 4 @PAA‐Cu‐complex) was prepared via a multistep synthesis and employed as an efficient, heterogeneous, magnetically recyclable nanocatalyst for one‐pot, three component synthesis of 5‐ and 1‐substituted tetrazoles using different substrates including benzaldehydes, benzonitriles, and anilines in mild conditions. The different approaches were mechanically investigated and compared. The catalyst was fully characterized by Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), X‐ray diffraction (XRD), vibrating sample magnetometer (VSM), energy dispersive X‐ray spectroscopy (EDX), inductively coupled plasma (ICP), FE‐SEM and TEM analyses. The magnetic nanocatalyst could be readily separated from the reaction mixture by an external magnet and reused for several times without significant loss of catalytic activity. Also, the spectroscopic analysis revealed the stability and durability of the catalyst. Finally, the chemoselectivity of the method was investigated by the various combinations of aldehyde, nitrile, and oxime.