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Application of Fe 3 O 4 @Silica Sulfuric Acid as a Magnetic Nanocatalyst for the Synthesis of Rhodamine Derivatives
Author(s) -
Vajekar Shailesh N.,
Shankarling Ganapati S.
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201801127
Subject(s) - sulfuric acid , ethylene glycol , yield (engineering) , catalysis , chemistry , solvent , mass spectrometry , nuclear chemistry , organic chemistry , materials science , chromatography , metallurgy
A green protocol for the synthesis of novel rhodamine derivatives employing a highly efficient and recyclable magnetic Fe 3 O 4 @silica sulfuric acid nanocatalyst in greener solvent ethylene glycol is demonstrated. In comparison with the known methods for the synthesis of rhodamines, our method offers several benefits such as mild reaction conditions, short reaction time (5 h) and high yield (up to 79%) of the products. Interestingly, the magnetically separable nanocatalyst was reused at least five times without significant loss in catalytic activity. All the novel derivatives are well characterized by 1 H NMR, 13 C NMR, and mass spectrometry.