Abstract
The reaction of naphthoquinone with nitroenamines and the interaction of benzimidazolequinones with derivatives of β-aminocrotonic ester have been studied. It was shown that in the first case only the synthesis of naphthofurans occurs but in the second imidazoindoles are formed.
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Lyubchanskaya, V.M., Alekseeva, L.M., Savina, S.A. et al. Reaction of Naphtho- and Benzimidazolequinones with Enamines. Synthesis of Condensed Benzofurans and Indoles. Chemistry of Heterocyclic Compounds 39, 61–64 (2003). https://doi.org/10.1023/A:1023016624281
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DOI: https://doi.org/10.1023/A:1023016624281