Abstract
A preparative synthetic method has been developed for 3-chloro-2-formyl-1,4-dimethoxyanthraquinone starting from available 2-methylquinizarine. The condensation of the α-chloroaldehyde obtained with acetone oxime gives 4,11-dimethoxyanthra[2,3-d]isoxazole-5,10-dione.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1421–1427, September, 2006.
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Shchekotikhin, A.E., Luzikov, Y.N., Buyanov, V.N. et al. Heterocyclic analogs of 5,12-naphthacenequinone. 4. Synthesis of 4,11-dimethoxy-anthra[2,3-d]isoxazole-5,10-dione. Chem Heterocycl Compd 42, 1236–1241 (2006). https://doi.org/10.1007/s10593-006-0232-x
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DOI: https://doi.org/10.1007/s10593-006-0232-x