Abstract
The synthesis and properties of new heterocyclic systems are described: isomeric 2,3-dioxo-2,3-dihydro-1H-benzo[b]thiopheno[2,3-g]-, 1,2-dioxo-1,2-dihydro-1H-benzo[b]thiopheno[3,2-e]-, and 2,3-dioxo-2,3-dihydro-1H-benzo[b]thiopheno[2,3-f]indoles. The reduction of the latter to the corresponding unsubstituted benzo[b]thiophenoindoles depends on both the nature of the reducing agent and the reaction conditions.
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Khoshtariya, T.E., Kurkovskaya, L.N., Mirziashvili, N.T. et al. Isomeric Dioxodihydro-1H-Benzo[b]thiophenoindole Synthesis and Properties. Chemistry of Heterocyclic Compounds 38, 466–471 (2002). https://doi.org/10.1023/A:1016091524370
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DOI: https://doi.org/10.1023/A:1016091524370