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ZnO NANOSHEET-PROMOTED SYNTHESIS OF 1,3-OXATHIOL-2-YLIDENE DERIVATIVES USING ALKYL BROMIDES IN WATER

Ali V. Moradi
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Abstract


The N-(1,3-oxathiol-2-ylidene)carboxamides have been synthesized in excellent yield in the reaction between alkyl bromide, acid chloride, and ammonium thiocyanate in the presence of catalytic amount of ZnO nanosheets (15 mol %) in water as a solvent at room temperature. The separation of product from the reaction mixture is very simple. Using NS-ZnO as a catalyst considerably improves the yield of the desired product in comparison with performing these reactions without catalyst. The catalyst shows good reusability.

How to Cite
Moradi, A. V. Chem. Heterocycl. Compd. 2015, 51, 834. [Khim. Geterotsikl. Soedin. 2015, 51, 834.]

For this article in the English edition see DOI 10.1007/s10593-015-1783-5


Keywords


α-bromoacetones; ethyl bromopyruvate; 1,3-oxathiol-2-ylidene; ZnO nanosheets; aqueous medium; green synthesis

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