Abstract
4-(1-Naphthyl)-1,2,3-thiadiazole is readily decomposed under the action of potassium tert-butylate with the release of nitrogen and the formation of potassium 2-(1-naphthyl)ethynylthiolate. Upon further treatment of the reaction mixture with excess of alkyl halide, the corresponding alkyl 2-(1-naphthyl)-1-ethynylsulfides have been obtained. In the case of the reaction with allyl bromide, the resulting sulfide has undergone rearrangement. A mixture of Z- and E-isomers of 2-(1-naphthyl)-1-ethynyl-1-propenylsulfide has been obtained as the product of allylic rearrangement instead of the expected product of the thio-Claisen rearrangement.
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Funding
This study was financially supported by Ministry of Education and Science of the Russian Federation in the scope of state project no 4.5554.2017/19 using the equipment of the Engineering Center of St. Petersburg State Technological Institute.
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Russian Text © The Author(s), 2019, published in Zhurnal Obshchei Khimii, 2019, Vol. 89, No. 7, pp. 1145–1148.
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Yekhlef, M., Petrov, M.L., Pevzner, L.M. et al. Synthesis of 1-Naphthylacetylene Sulfides from 4-(1-Naphthyl)-1,2,3-thiadiazole. Russ J Gen Chem 89, 1545–1548 (2019). https://doi.org/10.1134/S1070363219070272
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DOI: https://doi.org/10.1134/S1070363219070272