Preparation of 9-phenylethynyl-4-azafluoren-9-ol and 9-phenacylidene-4-azafluorene and their conversion to spiro compounds
- 34 Downloads
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 the conversion of 9-phenacylidene derivatives to spiro compounds takes place via intramolecular substitution.
KeywordsIndan Organic Chemistry Iodide Spiro Pyrazoline
Unable to display preview. Download preview PDF.
- 1.O. Kruber and L. Rappen, Chem. Ber., 81, 483 (1948).Google Scholar