Abstract
OXIDATION of O-trimethylbrazilin (I)1 yields O-trimethylbrazilone (II), the proposed structure2 of which is satisfactory in most respects. Nevertheless, the explanation of the unusual loss of two atoms of oxygen which occurs when it is converted into deoxytrimethylbrazilone (anhydrotrimethylbrazilin) by interaction with phenylhydrazine is not apparent.
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References
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Perkin and Robinson J. Chem. Soc., 93, 498 (1908). Perkin, Ray and Robinson, J. Chem. Soc., 2096 (1927): 1054 (1928).
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RICHARDS, R., TOMLINSON, M. Structure of O-Trimethylbrazilone. Nature 162, 693–694 (1948). https://doi.org/10.1038/162693c0
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DOI: https://doi.org/10.1038/162693c0
