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将取代的β-羰基酯与α-(或β-)萘酚直接反应生成黄酮化合物,改进了前人的反应条件和操作。发现羰基酯上带有强吸电子基团时,反应不易控制。由α-萘酚得到的黄酮显荧光,而由β-萘酚生成的黄酮不显荧光
The reaction of substituted β-carbonyl ester and α- (or β-naphthol) directly to produce flavone compound improves the reaction conditions and operation of the former. The carbonyl ester with a strong electron withdrawing group was found, the reaction is not easy to control. Flavonoids from alpha-naphthol fluorescently, and flavones from beta-naphthol are not fluorescent