(9-(Pyridazinyl-4)-4-azafluorenes and spiro compounds with 4-azafluorene and indeno[1,2-c]pyridazine (4h-5,6-dihydro-1,2-diazepine) fragments |
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Authors: | Amar Mustafa N M Mikhailova N I Golovtsov N S Prostakov |
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Institution: | (1) Russian University of People's Friendship, 117923 Moscow |
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Abstract: | 9-(3,6-Diphenylpyridazinyl-4)-4-azafluorene has been synthesized, and its conversions at the C9 position have been studied. From its C9-hydroxy derivative, 3 -phenylspiro-4-azafluorene-9,5 -indeno1,2-c]pyridazine] has been obtained. From 9-(1,2-dibenzoylethylidene-4-azafluorene, 3,7-diphenylspiro-4H-5,6-dihydro-1,2-diazepine-5,9 -4 -azafluorene] has been synthesized.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 10, pp. 1357–1360, October, 1992. |
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