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245	1	0	_aCharacterization of the Products Derived from the Nitration of 1,5aDihydroxyanthraquinone (anthrarufin)and 1,8-Dihydroxyanthraquinone (Chysazin)
490	0		_vDyes and Pigments, 12, p.145-155, 1990
520	3		_aWhen 2,5_djhydroxyunthraquinone (AnthraruJn)and I,8-dihydroxyanthra-quinone (Chrysazin)were nitrated using a mixture of concentrated sulfuric and nitric acids in the presence of boric acidat IO-2S"C, three major products formed in each reu~tion. The products were separated by ions-pressure column chromatography and identified by ' H-NMR andmass spectrometr~c analyses in tandem. The products identified result from the mono-, di- and tetranitration of these dihydroxya~thraqainones.
700	1	2	_aUkponmwan, D.0.
700	1	2	_aFreeman, H.S.
856	4	0	_uhttps://drive.google.com/file/d/1bM710BEvAGHXKLn5JxbCpErSGNg7SHJK/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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