Croatica Chemica Acta, Vol. 38 No. 4, 1966.
Original scientific paper
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
Abstract
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.
Keywords
Hrčak ID:
208150
URI
Publication date:
28.12.1966.
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