Collect. Czech. Chem. Commun. 1981, 46, 2519-2523
https://doi.org/10.1135/cccc19812519

1-(3-Chloro-2-butenyl)-3-methylpyrazole and 1-(3-chloro-2-butenyl)-5-methylpyrazole from oxidation products of hydrazo-3-chloro-2-butene

František Hrabák, Jiří Webr and Danica Doskočilová

Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, 162 06 Prague 6

Abstract

By oxidation of hydrazo-3-chloro-2-butene, (I), 1-(3-chloro-2-butenyl)-3-methylpyrazole (VII) and 1-(3-chloro-2-butenyl)-5-methylpyrazole (IV) are formed; the structures of these compounds have been proved by 1H NMR, UV, IR and mass spectrometry.