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Identification of diazonaphthoquinone esters of polyhydroxybenzophenone compounds

机译:聚羟基二苯甲酮化合物的重氮萘醌酯的鉴定

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Abstract: The seven possible 2,1-diazonaphthoquinone-5-sulfonates of 2,3,4- trihydroxybenzophenone have been isolated and characterized by IR, chromatographic and advanced NMR techniques. HPLC procedures for their analysis are given which show counterintuitive effects in the HPLC elution sequence due to the effect of intramolecular H-bonding on the polarity of some esters. A reaction scheme is proposed which qualitatively identifies preferred pathways to the trisester. !0
机译:摘要:已分离出7种可能的2,3,4-三羟基二苯甲酮的2,1-二重氮萘醌-5-磺酸盐,并通过红外,色谱和先进的核磁共振技术对其进行了表征。给出了用于其分析的HPLC程序,由于分子内H键对某些酯的极性的影响,在HPLC洗脱序列中显示出违反直觉的效果。提出了一种反应方案,其定性地确定了通往三酯的优选途径。 !0

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