Chemistry of Heterocyclic Compounds p. 413 - 416 (1984)
Update date:2022-09-26
Topics:
Prostakov, N. S.
Mikhalis Makuli
Mikhailova, N. M.
Sergeeva, N. D.
9-Phenylethynyl-4-azafluoren-9-ol, which was obtained from 4-azafluorenone and phenylethynylmagnesium iodide, was used in syntheses of isomeric 9-phenacylidene-4-azafluorenes and spiro compounds with indene, indan, and pyrazoline fragments.It is assumed that conversion of 9-phenacylidene derivatives to spiro compounds takes place via intramolecular substitution.
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