Croatica Chemica Acta, Vol. 40 No. 1, 1968.
Original scientific paper
Synthesis of Pyridazine Derivatives. XVII. Some Reactions on 2-Phenylimidazo(1,2-b )pyridazines
B. Stanovnik
; Department of Chemistry, University of Ljubljana, Ljubljana, Slovenia, Yugoslavia
M. Tišler
; Department of Chemistry, University of Ljubljana, Ljubljana, Slovenia, Yugoslavia
Abstract
The behavior of 2-phenylimidazo(l,2-b)pyridazines in some
electrophilic and nucleophilic subs.titution reactions has been
examined. It has been found that besides the expected electrophilic
substitution at position 3 of the imidazo-(1,2-b)pyridazine
ring, upon nitration a second nitro group enters the phenyl group
on para position as evident from an examination of the NMR
spectrum. Hydrazinolysis of a 3,6-dihalo derivative proceeded preferentially
at position 6.
Keywords
Hrčak ID:
208058
URI
Publication date:
15.5.1968.
Visits: 422 *