Croatica Chemica Acta, Vol. 47 No. 2, 1975.
Original scientific paper
Reaction of Aryldiazonium Chlorides with 1,3,5-Triketones. An Evidence for the Azohydrazone Conversion
D. Škare
; Military Academy for Technical Sciences, 41000 Zagreb
M. Laćan
; Laboratory of Organic Chemistry and Technology, Biochemistry Department, Faculty of Technology, University of Zagreb, 41000 Zagreb
Z. Meić
; Institute »Rugjer Boskovic«, 41000 Zagreb, Croatia, Yugoslavia
Abstract
The coupling reactions of diazonium chlorides with sym-
1,3,5-triketones are described. The azo-form of the products · is
rearranged .into .the hydrazo-form during this reaction. Dihydrazones
(I) were formed in the sodiumacetate buffered so1ution
while in the sodium hydroxide solution both (I) and monohydrazones
(II) were formed. The spectroscopic analysis, based on the
data from infrared and ultraviolet spectra, indicates that dihydrazones
exist in the double syn-form with an intramolecular hydrogen
bond.
Keywords
Hrčak ID:
196672
URI
Publication date:
15.10.1975.
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