Reaktionen mit cyclischen Oxalylverbindungen, 26. Mitt. Cyclokondensation von 4, 5-substituierten Thiophen-bzw. N-Alkylpyrrol-2, 3-dionen mito-Phenylendiamin

E Terpetschnig, W Ott, G Kollenz, K Peters…

文献索引：Terpetschnig, Ewald; Ott, Walter; Kollenz, Gert; Peters, Karl; Peters, Eva-Maria; Schnering, Hans Georg von Monatshefte fuer Chemie, 1988 , vol. 119, p. 367 - 378

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被引用次数: 31

摘要

Abstract 4-Benzoyl-5-phenylthiophene-2, 3-dione (1) reacts with o-phenylendiamine to give the quinoxaline derivative 2 which cyclizes either to the furo [2, 3-b] quinoxaline 4 or to the thieno [2, 3-b] quinoxaline 5 depending on the reaction conditions. On the other hand, the pyrrol-2, 3-diones 6 and o-phenylendiamine combine yielding the pyrrolidino [2, 3-b][1, 5] benzodiazepine derivatives 7. The structures of all compounds were confirmed by IR and ...