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Current Chemistry Letters

ISSN 1927-730x (Online) - ISSN 1927-7296 (Print)
Quarterly Publication
Volume 3 Issue 2 pp. 57-62 , 2014

Solvent- and catalyst-free synthesis of 2-aryl(heteroaryl)-substituted benzothiazoles Pages 57-62 Right click to download the paper Download PDF

Authors: Nazanin Sedaghat, Mohammad Reza Naimi-Jamal, Javad Mokhtari

Keywords: 2-Aminothiophenol, Benzothiazoles, Green synthesis, Melt reaction

Abstract: The condensation of several aromatic/heteroaromatic aldehydes with 2-aminothiophenol under melt reaction conditions afforded 2-arylbenzothiazoles under solvent-free conditions. The major advantages of the present method are high yields, short reaction times, and eco-friendly conditions.

How to cite this paper
Sedaghat, N., Naimi-Jamal, M & Mokhtari, J. (2014). Solvent- and catalyst-free synthesis of 2-aryl(heteroaryl)-substituted benzothiazoles.Current Chemistry Letters, 3(2), 57-62.

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11. Heo Y., Song Y.S., Kim B.T., Heo J.N. (2006) A highly regioselective synthesis of 2-aryl-6-chlorobenzothiazoles employing microwave-promoted Suzuki–Miyaura coupling reaction, Tetrahedron Lett., 47, 3091-3094.

12. Alagille D., Baldwin R.M., Tamagnan G.D. (2005) One-step synthesis of 2-arylbenzothiazole (‘BTA’) and -benzoxazole precursors for in vivo imaging of B-amyloid plaques. Tetrahedron Lett., 46, 1349-1351.

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14. (a) Mokhtari J., Naimi-Jamal M.R., Hamzeali H., Dekamin M.G., Kaupp G. (2009) Kneading ball-milling and stoichiometric melts for the quantitative derivatization of carbonyl compounds with gas-solid recovery. ChemSusChem, 2, 248-254. (b) Kaupp G., Naimi-Jamal M.R., Schmeyers J. (2003) Solvent-free Knoevenagel condensations and Michael additions in the solid state and in the melt with quantitative yield. Tetrahedron, 59, 3753-3760. (c) Kaupp G., Naimi-Jamal M.R., Stepanenko V. (2003) Waste-free and facile solid-state protection of diamines, anthranilic acid, diols, and polyols with phenylboronic acid. Chem. Eur. J., 9, 4156-4160. (d) Mashkouri S., Naimi-Jamal M.R. (2009) Mechanochemical solvent-free and catalyst-free one-pot synthesis of pyrano[2,3-d]pyrimidine-2,4(1H,3H)-diones with quantitative yields. Molecules, 14, 474-479. (e) Naimi-Jamal M.R., Mashkouri S., Sharifi A. (2010) An efficient, multicomponent approach for solvent-free synthesis of 2-amino-4H-chromene scaffold. Mol. Div., 14, 473-477.

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Journal: Current Chemistry Letters | Year: 2014 | Volume: 3 | Issue: 2 | Views: 3167 | Reviews: 0

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