Reactions of Cyclic Oxalyl Compounds, 26. Cyclocondensation Reaction of 4,5-substituted Thiophene- and N-Alkylpyrrol-2,3-diones with o-Phenylendiamine

DOI: 10.1007/BF00810263

Source and publish data:

Monatshefte fur Chemie p. 367 - 378 (1988)

Update date:2022-07-30

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Authors:

Terpetschnig, Ewald

Ott, Walter

Kollenz, Gert

Peters, Karl

Peters, Eva-Maria

Schnering, Hans Georg von

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Article abstract of DOI:10.1007/BF00810263

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,

Full text of DOI:10.1007/BF00810263

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