Abstract
3: 4-BENZXANTHBNE was first prepared by Baddar and Gindy, who oxidized it quantitatively and easily to the corresponding ketone1. 3 : 4-Benzxanthone, however, has been prepared directly, although in poor yields, by Graebe and Feer2, von Kostanecki3, and Knapp4.
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References
Baddar, F. G., and Gindy, M., Nature, 157, 409 (1946).
Graebe, C., and Feer, A., Ber., 19, 2612 (1886).
von Kostanecki, St., Ber., 25, 1643 (1892).
Knapp, W., J. Prakt. Chem., 146, 116 (1936).
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GINDY, M. Further Studies on 3: 4-Benzxanthenes. Nature 164, 577 (1949). https://doi.org/10.1038/164577a0
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DOI: https://doi.org/10.1038/164577a0
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