Abstract
N-Methyl (ethyl, benzoyl, trifluoroacetyl)-substituted 3-methyl-2-phenyl-5-(3′-methyl-2′-phenyl-3′,4′-dehydropiperidyl-6′) pyridines and di(N-oxide) of the correspondingly substituted α,ß-dipyridyl were prepared. A method for synthesizing 2-phenyldinicotinic acid was developed. Cyclodehydration of this acid gave 4-azafluorenone-2-carboxylic acid. Transformations of this acid were carried out with respect to two functional groups.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 813–817, June, 1986.
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Prostakov, N.S., Eliseeva, I.V., Habib, H.B. et al. Synthesis starting from 3-methyl-2-phenyl-5-(3-methyl-2-phenyl-3,4-dehydropiperidyl-6)pyridine. 2-phenyldinicotinic and 4-azafluorenone-2-carboxylic acids. Chem Heterocycl Compd 22, 642–646 (1986). https://doi.org/10.1007/BF00575247
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DOI: https://doi.org/10.1007/BF00575247