Journal
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
Volume 67, Issue 5, Pages 891-897Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jccs.201800489
Keywords
1; 3-benzoxazole; alkyl (aryl) isothiocyanates; clover leaf; Fe3O4 MNPs; isothiocyanates
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In this research, magnetic Fe3O4-NP nanoparticles were synthesized employing a green biosynthetic procedure by reduction of ferric chloride solution with clover leaf water extract. The nanoparticles prepared via this biosynthesis method can potentially be valuable for different purposes such as organic synthesis. In this research, 1,3-benzoxazole derivatives were generated via a multicomponent reaction of alpha-bromo ketones, isothiocyanate, and propiolate in the presence of a catalytic amount of bio-Fe3O4 MNPs and sodium hydride in water at 50 degrees C in good yields. The catalyst was reused five times with a minor decrease in its catalytic activity.
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