Nano-Fe3O4@SiO2–TiCl3 as a novel nano-magnetic catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazoles

Nano-Fe3O4@SiO2–TiCl3 as a novel nano-magnetic catalyst for the synthesis of... Electronic supplementary material The online version of this article (doi:https://doi.org/10.1007/ s11164-018-3498-6) contains supplementary material, which is available to authorized users. & Bi Bi Fatemeh Mirjalili fmirjalili@yazd.ac.ir Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Islamic Republic of Iran 123 6420 S. A. Fazeli-Attar, B. B. F. Mirjalili Keywords Nano-Fe O @SiO –TiCl  4H-pyrimido[2,1-b]benzothiazole  Solid 3 4 2 3 acid catalyst  Solvent free condition  Multicomponent reaction Introduction Among heterocyclic compounds, fused heterocycles showed a substantial role in pharmaceutical industry [1]. Benzothiazole derivatives were categorized as the fused heterocycles. They have been known to have significant applications in development of medicinal chemistry [2, 3]. To synthesis the pharmaceutical compounds, it is necessary to use a convenient and straightforward method without extra purification. The 4H-pyrimido[2,1-b]benzothiazole derivatives are compounds with the potential ability in the preparation of drugs. In recent years, these compounds were known to be functioning as anti-tumor [4], anti-inflammatory [5], anti-bacterial and anti-fungal [6] materials. The synthesis of 4H-pyrimido[2,1- b]benzothiazole is a three-component condensation reaction between aldehyde, b- ketoester and 2-aminobenzothiazole. The catalysts including Fe O @nano-cellu- 3 4 lose-TiCl [7], nano-TiCl /cellulose [8], PdCl [9], C–Ti O –SO –SbCl [10], 2 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Nano-Fe3O4@SiO2–TiCl3 as a novel nano-magnetic catalyst for the synthesis of 4H-pyrimido[2,1-b]benzothiazoles

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Nature B.V.
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-018-3498-6
Publisher site
See Article on Publisher Site

Abstract

Electronic supplementary material The online version of this article (doi:https://doi.org/10.1007/ s11164-018-3498-6) contains supplementary material, which is available to authorized users. & Bi Bi Fatemeh Mirjalili fmirjalili@yazd.ac.ir Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Islamic Republic of Iran 123 6420 S. A. Fazeli-Attar, B. B. F. Mirjalili Keywords Nano-Fe O @SiO –TiCl  4H-pyrimido[2,1-b]benzothiazole  Solid 3 4 2 3 acid catalyst  Solvent free condition  Multicomponent reaction Introduction Among heterocyclic compounds, fused heterocycles showed a substantial role in pharmaceutical industry [1]. Benzothiazole derivatives were categorized as the fused heterocycles. They have been known to have significant applications in development of medicinal chemistry [2, 3]. To synthesis the pharmaceutical compounds, it is necessary to use a convenient and straightforward method without extra purification. The 4H-pyrimido[2,1-b]benzothiazole derivatives are compounds with the potential ability in the preparation of drugs. In recent years, these compounds were known to be functioning as anti-tumor [4], anti-inflammatory [5], anti-bacterial and anti-fungal [6] materials. The synthesis of 4H-pyrimido[2,1- b]benzothiazole is a three-component condensation reaction between aldehyde, b- ketoester and 2-aminobenzothiazole. The catalysts including Fe O @nano-cellu- 3 4 lose-TiCl [7], nano-TiCl /cellulose [8], PdCl [9], C–Ti O –SO –SbCl [10], 2

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jun 5, 2018

References

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