Abstract
3-Phenyl-1H-naphtho[2,3-h]quinazoline-2,4,7,12-tetrona 3-phenyl-4-benzylidene-1H-naphtho[2,3-h]quinazoline-2,7,12-trione were synthesized by intramolecular cyclization in the KOH-DMSO system of anthraquinonylureas with a phenylethynyl or carboxy group in the 2 position of the anthraquinone ring.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 791–793, June, 1991.
The authors thank A. V. Piskunov for providing us with a sample of 1-amino-2-phenylethynylanthraquinone.
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Savel'ev, V.A., Loskutov, V.A. Cyclization of N-(2-R-1-anthraquinonyl)ureas to anthrapyrimidine derivatives. Chem Heterocycl Compd 27, 621–623 (1991). https://doi.org/10.1007/BF00472511
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DOI: https://doi.org/10.1007/BF00472511