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Cubic Perovskite ZnTiO 3 Nanopowder as a Recyclable Heterogeneous Catalyst for the Synthesis of 1,6‐Naphthyridines in Water
Author(s) -
Ray Suman,
Das Paramita,
Banerjee Biplab,
Bhaumik Asim,
Mukhopadhyay Chhanda
Publication year - 2015
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201402405
Subject(s) - catalysis , x ray photoelectron spectroscopy , environmentally friendly , oxide , perovskite (structure) , fourier transform infrared spectroscopy , sorption , materials science , aqueous solution , mixed oxide , chemical engineering , metal , metal ions in aqueous solution , inorganic chemistry , chemistry , organic chemistry , metallurgy , adsorption , ecology , engineering , biology
Abstract Cubic perovskite ZnTiO 3 nanopowder has been prepared by means of a sustainable sol–gel method. The nanopowder (12–20 nm) has been thoroughly characterized by N 2 sorption analysis, high‐resolution (HR) TEM, X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), SEM, and FTIR analyses. The environmentally benign synthesis of highly substituted 1,6‐naphthyridines catalyzed by ZnTiO 3 nanopowder in aqueous media has been demonstrated. It requires two different catalytic functions, that is, an acid one, which is provided by Ti IV ions, and a basic one, which is provided by the oxide ion incorporated within the ZnTiO 3 metal oxide framework. 1,6‐Naphthyridines are of tremendous biological importance, and this method is simple and environmentally friendly. The greenness of the process was satisfactorily established as water was exploited as the reaction medium and there was very high atom economy.