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Synthesis of 4-azafluorenes substituted at the position 9 based on 9,9-diphenacyl(phenacylidene)-4-azafluorene

โœ Scribed by Ammar Mustafa; N. M. Mikhailova; N. S. Prostakov


Publisher
Springer US
Year
1993
Tongue
English
Weight
318 KB
Volume
29
Category
Article
ISSN
0009-3122

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Synthesis of Quaternary Salts, Anhydro Bases and 9-(1,2-Dimethoxycarbonyl-3-benzoyl-7-indolizinylmethylene) -4-azafluorene on the Basis of 9-(ฮณ-Pyridylmethylene)azafluorenes. -Methylation of pyridylmethyleneazafluorene (I) with one equivalent of methyl iodide proceeds exclusively at the pyridine ni