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Green Nanospheres Natural Camphor Coated Ferrite as a Highly Efficient Nanocatalyst for the Synthesis of Dihydropyrimidine Derivatives
Author(s) -
Maleki Ali,
Zand Pedram,
Mohseni Zahra
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700131
Subject(s) - thiourea , camphor , fourier transform infrared spectroscopy , scanning electron microscope , ferrite (magnet) , materials science , inductively coupled plasma , green chemistry , adsorption , nuclear chemistry , chemical engineering , chemistry , catalysis , organic chemistry , reaction mechanism , composite material , plasma , physics , quantum mechanics , engineering
Dihydropyrimidines are synthesized by a one‐pot condensation of an aldehyde, β‐ketoester and urea or thiourea in the presence of Fe 3 O 4 @camphor as a new heterogeneous magnetic nanocatalyst. The nanospheres morphology of the green natural camphor/ferrite was characterized by Fourier transform infrared (FT‐IR) spectroscopy, field‐emission scanning electron microscopy (FE‐SEM) images, X‐ray diffraction (XRD) pattern, energy‐dispersive X‐ray (EDX), vibrating sample magnetometer (VSM), N 2 adsorption‐desorption by Brunauer–Emmett‐Teller (BET) and inductively coupled plasma (ICP) analyses. The advantages of this new report are short reaction times, high yields, easy workup, low cost and eco‐friendly protocol. The recoverable nanocatalyst was simply prepared and effectively employed for the one‐pot multicomponent synthesis of dihydropyrimidine derivatives, for the first time, at room temperature.