Abstract
9-Phenacylidene-4-azaf luorene and 9-bromo-9-(α-bromophenacyl)-4-azafluorene have been used in the synthesis of spiro compounds with fragments of substituted pyrazolines. 1-Methyl-2-oxo-5 phenacylidene-indeno[2, 3-e]-1,2-dihydropyridine and hydrazine gave 1-methyl-2-oxo-3′ phenylspiro[indeno(2, 3-e)-1,2-dihydropyridine-5,5′-pyrazoline-2′].
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N. S. Prostakov, Makuli Mikhalis, N. M. Mikhailova, and N. D. Sergeeva, Khim. Geterotsikl. Soedin., No. 4, 510 (1984).
Ammar Mustafa, N. M. Mikhailova, and N. S. Prostakov, Khim. Geterotsikl. Soedin., No. 11, 1508 (1993).
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Mustafa, A., Mikhailova, N.M. & Prostakov, N.S. Spiro compounds with fragments of 4-azafluorene-[indeno)2,3-e)-1,2-dihydropyridine] and pyrazoline. Chem Heterocycl Compd 32, 65–67 (1996). https://doi.org/10.1007/BF01169356
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DOI: https://doi.org/10.1007/BF01169356