Dmitry V. Osipov, Pavel E. Krasnikov, Alina A. Artemenko
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A reaction of 2-carbonyl-substituted 1H-benzo[f]chromenes with N-arylamides of cyanoacetic acid
A reaction of 2-trifluoroacetyl-1H-benzo[f]chromenes with N-arylamides of cyanoacetic acid led to the synthesis of a series of 2-oxo-6-trifluoromethylpyridine-3-carboxamides as products of a cascade of the carbo-Michael reaction, Thorpe–Ziegler cyclization, and Dimroth rearrangement. In the case of 1H-benzo[f]chromene-2-carbaldehydes, the corresponding Knoevenagel adducts were isolated.
期刊介绍：
The international journal Chemistry of Heterocyclic Compounds publishes original papers, short communications, reviews, and mini-reviews dealing with problems in the field of heterocyclic chemistry in Russian and English. The Journal also publishes reviews and annotations on new books and brief reports on conferences in the field of heterocyclic chemistry, as well as commemoratives dedicated to prominent heterocyclic chemists.
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