Chemistry of Heterocyclic Compounds p. 1262 - 1265 (1988)
Update date:2022-07-30
Topics:
Prostakov, N. S.
Varlamov, A. V.
Annan, H.
Fomichev, A. A.
Aliev, A. E.
et al.
Reaction of 9-diazo-4-azafluorene with phenylacetylene gives spiro<4-azafluorene-9,3'-pyrazolenines>, isomeric according to the position of the substituent in the pyrazolenine ring.Their thermal rearrangement to pyrazolo-4-azaphenathrenes that are isomeric according to ring linkage and position of the substituent in the pyrazole ring has been studied.
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(2010)
