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- We tried three times by the method similar to that used on 8-aminobenzanthrone, but 6,5-PyBz was not obtained
- Fujisawa , S. , Oonishi , I. , Aoki , J. , Ohashi , Y. and Sasada , Y. 1985 . Bull. Chem. Soc. Jpn. , 58 : 3356 [CSA]
- Benzanthrone synthesis may proceed by the protect of amino group, but it did not succeed due to hydrolysis by the action of sulfuric acid
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- Its UV spectra showed that it contained a little amount of 8, but it was difficult to isolate 8 Use of a smaller amount of sodium m-nitrobenzenesulfonate (0.100 mol) afforded considerable amounts of PyBz's
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- “ Quinones a resoluble in an alkaline sodium dithionite solution generating deep specific color ” . In This solution is called as “vat.” This property is a characterization of quinones
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