This article is cited in 9 papers

A route to pyrazolylazopyrazolo[4,3-c]pyrazoles via l,5-dimethyl-3R-pyrazolyl-4-diazonium salts

E. V. Tretyakov, S. F. Vasilevskii

V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation

Abstract: l,5-Dimethyl-3R-pyrazolyl-4-diazonium salts (R = H, C ≡ C–Ph) have been converted into the corresponding 6-(l,5-dimethyl-3R-pyrazol-4-yl)azo-l-methyl-3R-4H-pyrazolo[4,3-c]pyrazoles 6a,b and it has been shown that the reaction proceeds via l-methyl-5-(l,5-dimethyl-3R-pyrazolyl-4-azo)methyl-3R-pyrazolyl-4-diazonium chlorides 4a,b.

Language: English

DOI: 10.1070/MC1996v006n05ABEH000639

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