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Reaction of 3-(alken-1-yl)-4,5-dihydro-3H-pyrazoles with sodium nitrite in acetic acid

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Abstract

3-Vinyl-4,5-dihydro-3H-pyrazole reacted with sodium nitrite in acetic acid to give 3-vinyl-1-nitroso-4,5-dihydro-1H-pyrazole, whereas 3-isopropenyl-4,5-dihydro-3H-pyrazole under analogous conditions was unexpectedly converted into a nitro derivative, 3-(1-methyl-2-nitrovinyl)-4,5-dihydro-1H-pyrazole.

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Correspondence to V. A. Dokichev.

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Original Russian Text © K.V. Yakovlev, M.D. Khanova, D.V. Petrov, S.P. Kuleshov, V.A. Dokichev, 2013, published in Zhurnal Organicheskoi Khimii, 2013, Vol. 49, No. 9, pp. 1367–1368.

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Yakovlev, K.V., Khanova, M.D., Petrov, D.V. et al. Reaction of 3-(alken-1-yl)-4,5-dihydro-3H-pyrazoles with sodium nitrite in acetic acid. Russ J Org Chem 49, 1352–1353 (2013). https://doi.org/10.1134/S1070428013090182

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  • DOI: https://doi.org/10.1134/S1070428013090182

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