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Synthesis of Pyridazine Derivatives. IX. Formation of Pyridazines in the ·Reaction of Some Acid Anhydrides with Hydrazines

F. Kuhelj ; Department of Chemistry, University of Ljubljana, Ljubljana, Slovenia, Yugoslavia
B. Stanovnik ; Department of Chemistry, University of Ljubljana, Ljubljana, Slovenia, Yugoslavia
M . Tišler ; Department of Chemistry, University of Ljubljana, Ljubljana, Slovenia, Yugoslavia

Sažetak

Reaction between 4-cyclohexene-1 ;2-dicarboxylic acid anhydride
and hydrazine hydrate was investigated. There were obtained
d ifferent products depending on reaction conditions but no
pyridazines were formed . The reaction betwee n hydrazino pyridazines
and different acid anhydrides was also investigated and only
monohydrazides were obtained. Finally, a ring contraction of a pyridazine
derivative into a pyrazole derivative has been established.

Ključne riječi

Hrčak ID:

208150

URI

https://hrcak.srce.hr/208150

Datum izdavanja:

28.12.1966.

Posjeta: 1.986 *