Abstract
Acylation of 1,3-benzothiazol-6-amine with furan-2-carbonyl chloride in propan-2-ol gave N-(1,3-benzothiazol-6-yl)furan-2-carboxamide which was converted to the corresponding thioamide by treatment with excess P2S5 in anhydrous toluene. The subsequent oxidation with potassium hexacyanoferrate(III) in alkaline medium afforded 2-(furan-2-yl)benzo[1,2-d:4,3-d′]bis[1,3]thiazole which was subjected to electrophilic substitution reactions (bromination, nitration, hydroxymethylation, formylation, acylation). The substituent entered exclusively into the 5-position of the furan ring.
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Translated from Zhurnal Organicheskoi Khimii, 2021, Vol. 57, No. 4, pp. 583–587 https://doi.org/10.31857/S0514749221040145.
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Aleksandrov, A.A., Elchaninov, M.M., Tishina, D.A. et al. Synthesis and Reactivity of 2-(Furan-2-yl)benzo[1,2-d:4,3-d′]bis[1,3]thiazole. Russ J Org Chem 57, 664–667 (2021). https://doi.org/10.1134/S1070428021040242
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DOI: https://doi.org/10.1134/S1070428021040242