Chemistry of Heterocyclic Compounds p. 1024 - 1027 (1988)
Update date:2022-07-30
Topics:
Prostakov, N. S.
Makuli, Mikhalis
Mikhailova, N. M.
Sergeeva, N. D.
Obynochnyi, A. A.
Condensation of 4-azafluorenone and 9-phenacylidene-4-azafluorenone with acetophenone leads to the formation of 9,9-diphenacyl-4-azafluorene and 9-(1',2'-dibenzoylethylidene)-4-azafluorene.The structures of these products were confirmed based on their spectral and chemical data.The conversion of 9,9-diphenacyl-4-azafluorene to 3'-oxo-spiro-<4-azafluorene-9,1'-indane> represents a novel method for the preparation of this heterocycle.
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